Look at HIJ. Which of the triangles below can be proven similar to HIJ based only on the given information? Select all that apply.
Answers
The tringles ΔKLM, ΔXYZ, and ΔUVW are similar to the ΔHIJ.
What is the similarity of the triangles?
When it comes to Euclidean geometry, two things are said to be comparable if they have the same shape or the same shape as each other's mirror image. One can be created from the other more precisely by evenly scaling, possibly with the inclusion of further translation, rotation, and reflection.
We have,
In ΔHIJ
∠HIJ = 64°
∠JHI = 96°
and the side are
HI = 2 unit
IJ = 5.5 unit
HJ = 5 unit
So, the third angle will according to the sum of the angles of a triangle:
∠IJH = 20°
the triangles similar to ΔHIJ are:
A) It is similar to ΔHIJ cause,
∠HIJ ≅ ∠KLM
∠IJH ≅ ∠LMK
so, the third also will be equal:
∠JHI ≅ ∠LKM
D) It is similar to ΔHIJ cause,
∠IJH ≅ ∠XZY
HI/YX = 2/4 = 1/2
HJ/YZ = 5/10 = 1/2
C) It is similar to ΔHIJ cause,
HI/UV = 2/4 = 1/2
HJ/UW = 5/10 = 1/2
IJ/VW = 5.5/11 = 1/2
Hence, the tringles ΔKLM, ΔXYZ, and ΔUVW are similar to the ΔHIJ.
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Related Questions
Given the functions:
f(x)=2x g(x)=|x-3| h(x)=1/x-7
Evaluate the function (f-g)(x) for x = -2.
(f-g)(-2) is.
Answers
Answer:
-9
Step-by-step explanation:
[tex]f(-2)=2(-2)=-4 \\ \\ g(-2)=|-2-3|=5;\\ \\ (f-g)(2)=-4-5=-9[/tex]
Adult tickets to the fall play cost $8 and student tickets cost $4. The drama class sold 20 more adult tickets than student tickets to the fall play. If
the class collected $880 from ticket sales, how many adult tickets were sold?
The drama class sold
adult tickets.
The solution is
Answers
Answer: 110
Step-by-step explanation: If the drama class sold 20 more adult tickets than student tickets to the fall play, and adult tickets cost $8, then the number of adult tickets sold can be calculated by adding 20 to the number of student tickets sold and multiplying by $8. We can set up an equation to represent this relationship, where A represents the number of adult tickets sold and S represents the number of student tickets sold:
A = S + 20
A * 8 = $880
We know that the total amount collected from ticket sales was $880, and we know that adult tickets cost $8, so we can divide $880 by $8 to find the number of adult tickets sold:
A = $880 / $8
A = 110
Therefore, the drama class sold 110 adult tickets to the fall play.
A machine is designed to dispense 20 mg of d-desoxyephedrine into each capsule of a medicine. 13
pills are tested, and it's found that they have a mean drug content of 20.2 mg, with a standard
deviation of 2.4 mg. To a 1% level of significance, can it be asserted that the standard deviation of
the process (in general) is over 2 mg?
[Assume that the drug contents of all the pills are normally distributed.]
Answers
Answer: To answer this question, we need to perform a hypothesis test. The null hypothesis is that the standard deviation of the process is 2 mg or less, and the alternative hypothesis is that the standard deviation of the process is over 2 mg.
To test this hypothesis, we need to calculate the test statistic, which is the z-score. The z-score tells us how many standard deviations a given data point is from the mean. In this case, the z-score is calculated by subtracting the mean of the sample from the hypothesized mean of the population, and dividing that difference by the standard deviation of the sample:
z = (20.2 - 20) / 2.4 = 0.1
Since the z-score is positive, we know that the mean of the sample is greater than the hypothesized mean of the population. However, we need to compare this z-score to the critical value to determine whether it is statistically significant.
The critical value is the z-score that marks the cutoff between the region of acceptance and the region of rejection of the null hypothesis. For a 1% level of significance, the critical value is the z-score that marks the 99th percentile of the normal distribution. Since the normal distribution is symmetrical, this means that the critical value is 2.58 standard deviations from the mean.
Since the z-score we calculated is less than the critical value, we cannot reject the null hypothesis. This means that we cannot assert that the standard deviation of the process is over 2 mg at a 1% level of significance.
Questions 6-10. Suppose Calvin Cordozar Broadus, Jr. (aka Snoop Doggy Dogg) is
considering moving his family to Manhattan. His real estate agent has managed to locate a
penthouse apartment that overlooks Central Park for $2.4 million. He will have $2.1 million
from the sale of his current home as a down payment. Snoop would like to finance the
remainder of the cost and his banker has presented two options: a 30-year fixed-rate
mortgage at 8% or a 20-year fixed-rate mortgage at 7.5%.
How much will snoop have to finance?
Answers
Answer:
The price of the Penthouse is $2.4 million
Down Payment is $2.1 Million
So the amount that must be financed is $2.4 million - $2.1 million = $0.3 million or $300,000
Step-by-step explanation:
An alloy is a combination of two or more metals. A certain alloy of metal is made up
of copper and tin. The relationship between the number of grams of copper in the
alloy, x, and the number of grams of tin in the alloy, y, is represented by the graph
below.
What is the constant of proportionality as shown in the
graph?
Amount of tin (in grams)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.2
0.4
0.6
Amount of copper (in grams)
0.8
Answers
The constant of proportionality of the given linear graph is; 3/5
What is the constant of proportionality?The constant of proportionality is defined as the ratio of two proportional values that is said to be in a constant value.
Now, in this case where we have a graph, the constant of proportionality is equivalent to the slope of the graph.
The slope will be gotten using two coordinates (x₁, y₁) and (x₂, y₂) with the formula;
m = (y₂ - y₁)/(x₂ - x₁)
Let us use two coordinates on the graph (0.5, 0.3) and (1, 0.6)
m = (0.6 - 0.3)/(1 - 0.5)
m = 0.3/0.5
m = 3/5
This is same as the constant of proportionality.
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Find the missing side and angle measures in triangle ABC. Round your answers to the neFind the missing side and angle measures in triangle ABC. Round your answers to the nearest tenth.arest tenth. Scalene triangle ABC with side AC labeled 23 and side BC labeled 15. Angle A measures 40 degrees. The measure of angle B is approximately . The measure of angle C is approximately . The length of side AB is approximately units.
Answers
Answer:
B = 80.3°, C = 59.7°, AB = 20.2B = 99.7°, C = 40.3°, AB = 15.1Step-by-step explanation:
You want the solution to scalene triangle ABC with AC = 23, BC = 15, and ∠A = 40°.
Law of SinesWhen two sides of a triangle are given, along with an angle not between them, the Law of Sines can be used to solve the triangle. It tells you ...
sin(B)/AC = sin(C)/AB = sin(A)/BC
When the given angle is opposite the shortest given side, there are generally 2 solutions.
Applicationsin(B)/23 = sin(40°)/15 . . . . . fill in given values to find angle B
B = arcsin(23/15·sin(40°)) = 80.3° or 99.7°
Angle C will have the value that makes up the difference from 180°:
C = 180° -40° -{80.3°, 99.7°} = {59.7°, 40.3°}
The length of side AB can be found using the same Law of Sines proportion:
AB = BC·sin(C)/sin(A) = 15/sin(40°)·sin({59.7°, 40.3°})
AB = {20.2, 15.1}
The solutions are ...
B = 80.3°, C = 59.7°, AB = 20.2B = 99.7°, C = 40.3°, AB = 15.1Arguably, the second solution is not a "scalene" triangle. It is (nearly) isosceles. (See the comment below.)
__
Additional comment
Since answers are requested to be rounded to tenths, both solutions are scalene triangles. If we rounded to integers, then only the first solution would be a scalene triangle.
Which proportion could be used to prove that HJ || KL?
Answers
The correct proportion used to prove that HJ || KL is [tex]\frac{GK}{HK} = \frac{GL}{LJ}[/tex].
What is the proportion theorem of two similar lines?
According to this theorem, if you draw a line parallel to one side of a triangle that divides the other sides into two separate points, the line will proportionally divide the other sides. In addition, a line is parallel to the third side if it divides any two triangle sides in the same ratio.
We have,
HJ || KL
If a line parallel to one side of a triangle intersects the other two sides of the triangle, then the line divides these two sides proportionally.
And in the given triangle, HJ is parallel to KL, So HJ divided the two sides in proportion, that is
[tex]\frac{GK}{HK} = \frac{GL}{LJ}[/tex]
The correct option is the fourth option.
So, The correct proportion could be used to prove that HJ || KL
[tex]\frac{GK}{HK} = \frac{GL}{LJ}[/tex]
Hence, the correct proportion used to prove that HJ || KL is [tex]\frac{GK}{HK} = \frac{GL}{LJ}[/tex].
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Pls help me is fast rapidly more fast answer fast of khan academy
Answers
The different possibilities
5 + 4/105 + 3/10 + 10/100 5 + 2/10 + 20/1005 + 1/10 + 30/1005 + 0/10 + 40/100What is place value?The value of each digit in a number is known as place value. Every digit in a number has a distinct value depending on where it is located. The value of a digit depends on its position in the number, which might result in a number having two comparable digits with distinct values.
Given:
5.4
Now, filling with different possibilities
5 + 4/105 + 3/10 + 10/100 5 + 2/10 + 20/1005 + 1/10 + 30/1005 + 0/10 + 40/100Tens Ones Tenths Hundredths
0 5 4 0
0 5 3 10
0 5 2 20
0 5 1 30
0 5 0 40
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In a multiple regression problem involving two independent variables, if b1 is computed to be +2.0. It means that a. the estimated mean of Y increases by 2 units for each increase of 1 unit of X1, without regard to X2.
b. the estimated mean of Y increases by 2 units for each increase of 1 unit of X1. holding X2 constant.
c. the estimated mean of Y is 2 when XI equals zero.
d. the relationship between X1 and Y is significant
Answers
In multiple regression problem with two independent variables, value of one varible , b₁ is 2 then it means that the estimated mean of Y increases by 2 units for each increase of 1 unit of X₁, holding X₂ constant. So, second option is correct option.
Multiple Regression: Multiple regression is a statistical technique that can be used to analyze the relationship between a single dependent variable and multiple independent variables. The goal of multiple regression analysis is to use independent variables with known values to predict the value of each dependent value.
Y = b₁x₁+ b₂x₂ + … bₙxₙ + a
Here Y is the dependent variable, and X₁,…,Xₙ are the n independent variables. In calculating the weights, a, b₁,…,bₙ,
In the multiple regression b1 shows the coeffcient of independent variable X₁ in fitted model.
Here b₁ =+2.0 shows that for each unit increase in X₁, dependent variable Y is increased by 2 keeping other things constant.
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Really need help on this
Answers
We need to see how far the figure has moved in translation and directions and angles in rotational transformation.
What is transformation?
A transformation is a general term for four specific ways to manipulate the shape and/or position of a point, a line, or geometric figure.
Given is a triangle ABC,
In translation transformation, the original image is congruent to the transformed one hence, we need to see how far the shape has moved to the left or right and how many it has moved up or down.
In rotational transformation, the original figure is not necessarily congruent to the image hence, we need to see direction (clockwise CW or counterclockwise CCW) angle in degrees and Center point of rotation (turn about what point)
Hence, we need to see how far the figure has moved in translation and directions and angles in rotational transformation.
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Find the slope and y- intercept of the line -x + y = -10
Answers
Answer:
y-intercept | -10
slope | 1
Step-by-step explanation:
plane curve | Cartesian equation -x + y = -10 | y-intercept
slope
y-intercept | -10
slope | 1
A sample of 200 g of an isotope decays to another isotope according to the function A(t}=200 e^{-0.054t}, where t is the time in years.
(a) How much of the initial sample will be left in the sample after 25 years?
(b) How long will it take the initial sample to decay to half of its original amount?
(a) After 25 years, about ? g of the sample will be left.
(Round to the nearest hundredth as needed.)
Answers
According to exponential equation 52 g sample will be left in the sample after 25 years
What is exponential equation?
The exponential function may be a function denoted by f(x)=\exp or e^. Unless otherwise fixed, the term usually refers to the positive-valued operate of a true variable
Main Body:
Given =
A(t}=200 e^{-0.054t}
A)
t = 25 years
A(25}=200 e^{-0.054*25}
A(25}=200 e^{-1.35}
A(25}=200 *0.26
A(25}= 52 g
B) A = 100
A(t}=200 e^{-0.054t}
100 =200 e^{-0.054t}
e^{-0.054t} = 1/2
taking logarithm on both sides , we get
t = 12.83 years
Hence the value for each parts are as follows.
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Please solve the question in Image
Answers
Answer:
y(0.1) = 0.05, y(0.2) = 0.09
what is modified Euler method?Modified Euler's method is a numerical method used to solve ordinary differential equations (ODEs). It is a variation of Euler's method that is more accurate than the original, but still relatively simple to implement. It works by taking a single iteration of the Euler method, then using the midpoint between the current and previous points to calculate the next point in the sequence. This is done in order to reduce the error.
Solution
We have, y(0) = 0
dy/dt = 1 – y
h = 0.1
Using modified Euler's method,
y(0.1) = y(0) + (1/2) h (f(t0, y0) + f(t0 + h, y0 + hf(t0, y0)))
= 0 + (1/2) (0.1) [(1 - 0) + (1 - 0 + 0.1)]
= 0.05
Similarly,
y(0.2) = 0.1 + (1/2) (0.1) [(1 - 0.05) + (1 - 0.1 + 0.1)]
= 0.0975
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Determine if a triangle exists with the given side lengths.
3, 6, 2
Answers
Answer:
Not a triangle.
Criteria for it to be a triangle:
3 = A
6 = B
2 = C
A + B > C
B + C > A
A + C > B
What this says, is that if you add any two sides of the triangle, it needs to be bigger than the one you left out.
3 + 6 > 2 This one works
6 + 2 > 3 This one works
3 + 2 > 6 This one doesn't work because 5 is less than 6
Since the last one didn't work, it's not a triangle.
2) Solve for m: 2.6m = 8.06
Answers
Answer: m = 3.1
Step-by-step explanation:
To solve for m you must divide 2.6m by 2.6m. Therefore, you must do the same on the other side of the equation.
2.6m/2.6m = 8.06/2.6m
m= 3.1
[tex]m=3.1.[/tex]
Step-by-step explanation:1. Write the equation.[tex]2.6m = 8.06[/tex]
2. Divide by 2.6 in both sides of the equation.[tex]\frac{2.6}{2.6} m=\frac{8.06}{2.6}\\ \\(1)m=\frac{8.06}{2.6}\\ \\m=\frac{8.06}{2.6}[/tex]
3. Simplify the fraction.[tex]m=\frac{8.06}{2.6}\\ \\m=3.1[/tex]
4 Verify the answer by substituting the calculated value by x in the original equation.[tex]2.6(3.1) = 8.06\\8.06=8.06[/tex]
That's correct!
5. Express the final result.[tex]m=3.1.[/tex]
Write the following expression in simplest form.
the expression quantity negative three fifths times x minus 7 end quantity minus quantity negative 12 plus three tenths times x end quantity
negative nine tenths times x plus 5
negative nine tenths times x plus negative 5
three over 10 times x plus 5
three over 10 times x plus negative 19
Answers
The following expression (-3/5)x-7-(-12)+(3/10)x can be written in the simplest form as -3/10x+5( three over 10 times x plus 5). So, option c is correct.
What is meant by an expression?An expression or mathematical expression is a finite arrangement of symbols that are well-formed in line with context-dependent criteria. To help define the logical grammar and order of operations, mathematical symbols can be used to represent variables, operations, functions, brackets, punctuation, and grouping. A sentence qualifies as a mathematical expression if it comprises one or more mathematical operations, at least two numbers, or variables. Mathematicians have the ability to multiply, divide, add, and subtract. The following is the structure of an expression: Expression, number/variable, and mathematical operator.
(-3/5)x-7-(-12)+(3/10)x
-3/5x-7+12+3/10x
-6/10x-7+12+3/10x
-3/10x+5
Three over 10 times x plus 5
Therefore, the following expression (-3/5)x-7-(-12)+(3/10)x can be written in the simplest form as -3/10x+5( three over 10 times x plus 5).
Hence, option c is correct.
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The angle below measures 2.4 radians, and the circle centered at the angle's vertex has a radius 3 units long. 2.21 (x, y) 11 2.4 rad Determine the exact coordinates of the terminal point (2,y). • 2 = cos(2.4) * Preview • y= sin(2.4)
Answers
The exact coordinates of the terminal point (x,y) is = (-2.212185 , 2) .
In the question ,
it is given that ,
the measure of the angle in the figure is = 2.4 radians ,
From graph ,
we can see that the y - coordinate is = 2 unit , So , y = 2 .
Now , for the x - coordinate ,
we draw a right triangle ABO ,
where the height is 2 units and hypotnuse is = 3 units (radius) ,
the angle 2.4 radian in degree is = 137.51° ,
So , from the trigonometric ratio ,
Cos(θ) = base/hypotnuse ,
Cos(137.51) = x/3 ,
x = 3*Cos(137.51)
x = 3*(-0.737395)
x = -2.212185
Therefore , the exact point (x,y) is = (-2.212185 , 2) .
The given question is incomplete , the complete question is
The angle below measures 2.4 radians, and the circle centered at the angle's vertex has a radius 3 units long. Determine the exact coordinates of the terminal point (x , y) .
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I thought of a number. If I add 30/7 to it, then subtract 22/7 from the result, and then subtract that difference from 59/7, I get 19/7. What is my number
Answers
Answer: 10
Step-by-step explanation:
x + 30/7-22/7-59/7 = 19/7
Add 59/7 to both sides:
x + 30/7-22/7 = 19/7 + 59/7
Add 22/7 to both sides
x + 30/7 = 19/7 + 59/7 + 22/7
Subtract 30/7 from both sides
x = 19/7+59/7+22/7-30/7
Simplify
x = 10
the lengths of two sides of a triangle are 4 cm and 13 cm. identify the range of possible lengths for the third side.
a. 4 cm < x < 13 cm b. 5 cm < x < 12 cm c. 9 cm < x < 17 cm d. 3 cm < x < 14 cm
Answers
Because the range is supplied as the difference between the side and the total of the sides given, option C, which is 9 cm<x<17 cm, is the right choice.
What is triangle?A polygon with three edges and three vertices is called a triangle. It is one of the fundamental geometric shapes. Triangle ABC is the designation for a triangle with vertices A, B, and C. In Euclidean geometry, any three points that are not collinear produce a distinct triangle and a distinct plane.
Here,
The range of possible lengths for the third side,
13-4<x<13+4
9<x<17
The correct option is C that is 9 cm < x < 17 cm because the range is given in difference between the side and sum of sides given.
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Which answer choice correctly complete the sentence?
Asking the “Did you Check” questions is an important step in the Problem Solving Plan because you can
A.
determine if your answers are
reasonable.
B. organize your thoughts.
C. understand the problem better.
D. define your strategy easier.
Answers
Find the value of q for which the equation
qx² - 6x + 18 = 0
has one repeated real root
q = ______
Answers
Answer:
q = [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
given a quadratic equation in standard form
ax² + bx + c = 0 ( a ≠ 0 )
then the nature of the roots can be found using the discriminant
Δ = b² - 4ac
• if b² - 4ac > 0 then roots are real and irrational
• if b² - 4ac = 0 then the roots are real and equal
• if b² - 4ac < 0 then the roots are not real
qx² - 6x + 18 = 0 ← is in standard form
with a = q , b = - 5 , c = 18
for one repeated (equal) real root , then
b² - 4ac = 0 ( substitute values )
(- 6)² - (4 × q × 18) = 0
36 - 72q = 0 ( subtract 36 from both sides )
- 72q = - 36 ( divide both sides by - 72 )
q = [tex]\frac{-36}{-72}[/tex] = [tex]\frac{1}{2}[/tex]
Suppose that the functions g and h are defined as follows.
g(x)=5-4 x²
h(x)=5-4 x
(b) Find all values that are NOT in the domain of g/h
If there is more than one value, separate them with commas.
Answers
By using the concept of function, it can be calculated that-
a) [tex]\frac{g}{h}(-3) = -\frac{31}{17}[/tex]
b) The point [tex]\frac{5}{4}[/tex] is not in the domain of [tex]\frac{g}{h}[/tex]
What is a function?
A function from A to B is a rule that assigns to each element of A a unique element of B. A is called the domain of the function and B is called the codomain of the function.
There are different operations on functions like addition, subtraction, multiplication, division and composition of functions.
Here,
a) The given functions are
g(x) = 5 - 4x²
h(x) = 5 - 4x
[tex]\frac{g}{h}(x) = \frac{g(x)}{h(x)} = \frac{5-4x^2}{5-4x}[/tex]
[tex]\frac{g}{h}(-3) = \frac{g(-3)}{h(-3)} = \frac{5 - 4(-3)^2}{5 - 4(-3)} = -\frac{31}{17}[/tex]
b) [tex]\frac{g}{h}(x)[/tex] is not defined if 5 - 4x = 0
[tex]\frac{g}{h}(x)[/tex] is not defined if [tex]x = \frac{5}{4}[/tex]
So the point [tex]\frac{5}{4}[/tex] is not in the domain of [tex]\frac{g}{h}[/tex].
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State the third congruence that must be given to prove that △ ≅ △, using the indicated postulate or theorem. Select the two corresponding sides or angles that must be congruent.
(Explanation would be appreciated!)
Answers
Answer:
<A ≅ <X
<B ≅ <Y
Method
AAS Congruence Theorem
Step-by-step explanation:
What way can you simplify this equation?
Answers
Answer: 8√2
Step-by-step explanation:
Solve the simultaneous equations
Show clear algebraic working.
7x+2y=5.5
3x-5y=17
Answers
Answer:
(1.5, - 2.5 )
Step-by-step explanation:
7x + 2y = 5.5 → (1)
3x - 5y = 17 → (2)
multiplying (1) by 5 and (2) by 2 and adding will eliminate y
35x + 10y = 27.5 → (3)
6x - 10y = 34 → (4)
add (3) and (4) term by term to eliminate y
41x + 0 = 61.5
41x = 61.5 ( divide both sides by 41 )
x = 1.5
substitute x = 1.5 into either of the 2 equations and solve for y
substituting into (1)
7(1.5) + 2y = 5.5
10.5 + 2y = 5.5 ( subtract 10.5 from both sides )
2y = - 5 ( divide both sides by 2 )
y = - 2.5
solution is (1.5, - 2.5 )
What is the slope of the line?
What is the equation for the line? y = ________
is the graph proportional? Y or N
Answers
The slope of line is -3, the equation of line is y=-3x+2 and the graph is not proportional.
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
From the given graph let us take two points (0, 5) and (1,2).
m=2-5/1=-3.
Now let us find the y intercept.
2=-0+b
2=b
So the equation of line is y=-3x+2.
As the graph is not passing through the origin, then the graph is not proportional.
Hence, -3 is the slope of line and y=-3x+2 is the equation of line and the graph is not proportional.
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What is the equation of a line that is parallel to -3x + 4y = 4 and passes through the point (4, 0)?
Enter your answer as a slope intercept equation (y=mx+b) in the box.
Answers
Answer:
y = [tex]\frac{3}{4}[/tex] x - 3
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + b ( m is the slope and c the y- intercept )
given
- 3x + 4y = 4 ( add 3x to both sides )
4y = 3x + 4 ( divide through by 4 )
y = [tex]\frac{3}{4}[/tex] x + 1 ← in slope- intercept form
with slope m = [tex]\frac{3}{4}[/tex]
• Parallel lines have equal slopes , then
y = [tex]\frac{3}{4}[/tex] x + b ← is the partial equation of the parallel line
to find b substitute (4, 0 ) into the partial equation
0 = 3 + b ⇒ b = 0 - 3 = - 3
y = [tex]\frac{3}{4}[/tex] x - 3 ← equation of parallel line
Complete the table to make a proportional relationship between distance and time.
Answers
The missing value of the distance is 8.4 feet
Direct Proportion:The relationship between two values when their ratio equals a constant number is known as a direct proportion or direct variation.
If a and b are in direct proportion then the relation can be represented as
=> a = kb [ where k is constant ]
Here we have
Distance 6 feet - -
Time 15 sec - 21 sec
As we know,
Distance will be directly proportional to Time
=> Distance ∝ Time
=> Distance = K (Time)
=> Distance/Time = k
Where k is the proportionality constant
By the above calculations
If Distance and Time are directly proportional then Distance/Time must be a constant
Now use the above condition to get the missing value
At a distance of 6 feet and a time of 15 sec
=> Distance/Time = 6/15
Let the missing value is x, and the time is 21 sec
=> Distance/Time = x/21
As we Distance/time will be constant
=> 6/15 = x/21
=> 6(21) = x(15)
=> x = 126/15
=> x = 8.4
Therefore,
The missing value of the distance is 8.4 feet
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Ahmed is planning to cook his family dinner and needs to purchase several food items. He is able to purchase these items either at the local grocery store or the farmer's market. Given in the table are the items and their prices.
Grocery Store Farmer's Market
8 tomatoes for $14 10 tomatoes for $16.50
4 cups of mozzarella cheese for $4.40 3 cups of mozzarella cheese for $3.45
12 eggs for $2.40 7 eggs for $1.75
Part A: Choose one of the food items offered at the grocery store and the farmer's market and determine the unit price of the item at each location. Show all necessary work, including the name of the item chosen. (6 points)
Part B: Based on your answer in part A, which location offers a better deal? Explain. (4 points)
Answers
Answer: Better Deals: for tomatoes--Farmer's Mkt., for cheese--Grocery, for eggs--Grocery
Step-by-step explanation:
Unit prices:
tomatoes: $14/8 = $1.75/tomato (grocery); $16.50/10 = $1.65 (farmers)
cheese: $4.40/4 = $1.10/cup (grocery); $3.45/3 = $1.15 (farmers)
eggs: $2.40/12 = $0.20/egg (grocery); $1.75/7 = $0.25/egg (farmers)
Deshaun wants to attend a college that will cost $25,600 for the first year. His uncle gave him a special gift of $2500 to use toward the cost. Deshaun plans to attend the college in 7 years. How much must Deshaun save each month to have enough for the first-year cost?
Answers
Answer:
$275
Step-by-step explanation:
25600-2500=23100 how much is left to pay
7*12=84 months left till college
23100/84=275 he would have to save per month