Answer:
20:50 or 2:5
Step-by-step explanation:
30 dogs
20 cats
50 total animals
Part to whole relationship:
20:50
extended Response
1. The weights of grapefruits, 0, of a certain variety are approximately Normally
distributed with a mean of 1 pound and a standard deviation of 0.12 pounds.
a. Let 7-36. Find the mean and standard deviation of 7.
b. Let R= G+G+G. Find the mean and standard deviation of R.
c. Let Q=T-R. Find the mean and standard deviation of Q.
The mean weight of 7 grapefruits will be 7 pounds and the standard deviation will be 0.84 pounds.
The mean weight of R will be 3 pounds and the standard deviation will be 0.36 pounds.
The mean weight of Q will be 4 pounds and the standard deviation will be 0.48 pounds.
What is the mean and standard deviation?a. The mean and standard deviation of 7 grapefruits will be 7 times the mean and standard deviation of a single grapefruit, respectively.
b. If G represents the weight of a single grapefruit, then
R = G + G + G
= 3G.
The mean and standard deviation of R will therefore be 3 times the mean and standard deviation of a single grapefruit, respectively.
c. If T represents the total weight of all 7 grapefruits, then
Q = T - R
= 7G - 3G
= 4G.
The mean and standard deviation of Q will be 4 times the mean and standard deviation of a single grapefruit, respectively.
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write each equation in point slope form.
y+5=-6(x+7)
and y+2 =1/6(x-4)
The equation of line in slope-intercept form is,
a.) y = -6x - 47
b.) y = x/6 - 8/3
What is Equation of line ?
A straight line's general equation is y = mx + b, where m denotes the gradient and y = b denotes the point at which the line crosses the y-axis. On the y-axis, this value b is referred to as the intercept.
We know, slope-intercept form is
y = mx + b
The given equation is in point slope form,
a.) y + 5 = -6 (x + 7)
b.) y + 2 = 1/6 (x-4)
Now, let's write each equation in slope-intercept form,
a.) y + 5 = -6 (x + 7)
y + 5 = -6x - 42
y = -6x - 42 - 5
y = -6x - 47 [which is slope-intercept form]
b.) y + 2 = 1/6 (x-4)
y + 2 = 1/6 * x - 1/6 * 4
y + 2 = x/6 - 2/3
y = x/6 - 2/3 - 2
y = x/6 - [2/3 + 2]
y = x/6 - [(2 + 6) / 3 ]
y = x/6 - 8/3 [which is slope-intercept form]
Hence, the equation of line in slope-intercept form is y = -6x - 47 and y = x/6 - 8/3
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a triangle undergoes a dilation with a scale factor of 7/10. the resulting triangle is _[blank]_ the original triangle.
The resulting triangle is 7/10 the original triangle.
How triangle dilated with scale factor?The focuses in the direction planes are A(0, 2), B(2, 1), C(- 2, - 2). In the event that the scale factor is 2, each direction point of the first triangle is duplicated by the scale factor 2. Subsequently, the expanded triangle will be A'B'C' and the direction focuses got are A'(0, 4), B'(4, 2), C'(- 4, - 4).
According to question:Let we have a triangle ABC,If this triangle undergoes a dilation with a scale factor of 7/10,
Then changed triangle is A'B'C'
So, relation between them is A'B'C' = 7/10(ABC)
Thus, the resulting triangle is 9/5 multiple of triangle ABC.
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What is the density of a pumpkin with a mass of 2.0 kg and a volume of 0.0060 m3 ? 330 kg/m3 0.003 kg/m3 0.012 kg/m3 1200 kg/m3
The density of a pumpkin with a mass of 2.0 kg and a volume of 0.0060m³ is 0.003 kg / m³.
What is the density?Density of the matter means space taken by matter.
To find the density, density = mass of matter / volume of mass.
Given that mass of the pumpkin 2.0 kg and a volume of 0.0060 m³.
Now the density from the formula;
Density = mass of pumpkin / volume of pumpkin
Density = 2.0 / 0.0060
Multiply by 10000,
Density = 20000 / 60
Density = 2000 / 6
Density = 1000 / 3
Density = 0.003 kg / m³
Therefore, the density of a pumpkin with a mass of 2.0 kg and a volume of 0.0060m³ is 0.003 kg / m³
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6. Which is equivalent to the following expression?
(3p² +5pq-q²) + (p² +3pq-2q
2
9²)
O3p² +8pq-3q²
O4p² +8pq+q²
O4p4 +8pq-3q
O4p²+8pq-3q²
(1 point)
Answer:
Step-by-step explanation:
5
The diameter of a circle is 11 cm. Find its area to the nearest tenth.
The area of the given circle is 95 cm².
What is a circle?All points in a plane that are at a specific distance from a specific point, the center, form a circle.
In other words, it is the curve that a moving point in a plane draws to keep its distance from a specific point constant.
So, we know that the diameter of the circle is 11 cm.
Radius = Diameter/2
11/2
5.5 cm
Area of circle: πr²
3.14(5.5)²
3.14*30.25
94.985
Rounding off: 95 cm²
Therefore, the area of the given circle is 95 cm².
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Pls answer and show work
Step-by-step explanation:
always remember Pythagoras for right-angled triangles (90°) :
c² = a² + b²
c is the Hypotenuse (the baseline opposite of the 90° angle), a and b are the legs.
so, in our case
ramp² = 11² + 60² = 121 + 3600 = 3721
ramp = sqrt(3721) = 61 ft
Answer:
61 feet
Step-by-step explanation:
Because the triangle is a right triangle we can use the Pythagorean theorem to solve for the length of the ramp.
The Pythagorean theorem is a² + b² = c²
Where, a and b = leg lengths and c = hypotenuse (longest side)
Here, the length of the ramp represents the hypotenuse as it is the longest side. We are also given the length of the legs. The lengths being 60 ft and 11 ft.
This means that a and b = 11 and 60
We can plug these lengths in and then solve for c or the length of the ramp
a² + b² = c²
==> plug in a = 11 and b = 60
11² + 60² = c²
==> simplify exponents
121 + 3600 = c²
==> add 121 and 3600
3721 = c²
==> take the square root of both sides
61 = c
So the length of the ramp is 61 feet
In parallelogram lonm, what is om? 7 cm 17 cm 24 cm 34 cm
In parallelogram lonm, om is 34.
What is parallelogram?
A parallelogram is a straightforward quadrilateral with two sets of parallel sides in Euclidean geometry. A parallelogram's facing or opposing sides are of equal length, and its opposing angles are of equal size.
A quadrilateral with the opposing sides parallel is called a parallelogram. A parallelogram with all right angles is known as a rectangle, and a quadrilateral with equal sides is known as a rhombus.
First we have OQ =QM,
So 2x+3=3x-4,
x =7.
Hence OM =2(17)=34.
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Answer: D) 34
Step-by-step explanation:
edge 2023
PLEASE HELP HURRY!!!!
On solving the provided question, we got by the help of Slope formula - [tex]= 5x - y + 5 = 0[/tex]
What is Slope?A line's slope can be calculated as the ratio of how much y rises when x rises by a specific amount. A line's slope, or how much y increases as x increases, is indicated by the word "slope." Along the straight line, the slope is constant (equal) everywhere.
From the figure we got that,
X1 = 0, Y1 = 5
X2 = -1, Y2 = 0
(0,5) and (-1,0)
By the of slope formula
[tex]\frac{y - y1}{x - x1} = (\frac{y2 - y2}{x2 - x1} )(\frac{x - x1}{y - y1} )[/tex]
[tex]{y - 5} = (\frac{0-5}{-1-0} )({x - 0 )\\\\\\[/tex]
[tex]= > 5x - y + 5 = 0[/tex]
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Use compatible numbers to estimate the correct quotient.
The value of quotient will be;
⇒ 60
What is Division method?
Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
Given that;
The expression is,
⇒ 15 ) 900 (
Now,
Solve the expression by dividing, we get;
⇒ 15 ) 900 ( 60
- 90
--------
× 0
Thus, The value of quotient will be;
⇒ 60
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Recall that two angles are complementary if the sum of their measures is 90°. Find the measures of two complementary angles if one angle is 15º more than two times the other angle. What does the smaller angle measure? What does the bigger one measure?
Answer:
smaller = 25, bigger = 65
Step-by-step explanation:
x = smaller
y = bigger
2x + 15 + x = 90
3x + 15 = 90
3x = 75
x = 25
y + x = 90
y + 25 = 90
y = 65
can someone please explain this 4x[tex](4x^{2} -5x)- (4x^{2} -4x-8)[/tex]
the answer is -x+8 but I don't get why its +8 and not -8
Your first step of simplifying is to distribute the "–" or "–1" in front of the second set of parentheses through that second set of parentheses. The –1 must be distributed to every term in the second set:
[tex]\begin{aligned}(4x^2-5x)-(4x^2-4x-8)&=(4x^2-5x)\boldsymbol{{}-1}(4x^2-4x-8)\\[0.5em]&=4x^2-5x\boldsymbol{{}-1(4x^2)-1(-4x)-1(-8)}\\[0.5em]&=4x^2-5x\boldsymbol{{}-4x^2+4x+8}\\[0.5em]&=-x+8\\\end{aligned}[/tex]
That's what changes the sign on every term in the second set of parentheses, making that –8 become +8.
A toy jeep i 12 and 1/2 inche long while an actual jeep meaure 18 3/ 4 feet long what i the value of the ratio length of the toy jeep to the length of the actual Jeep what doe thi ratio mean in the ituation?
Therefore the solution of this question is ratio length = every 1 inch of toy car represents 1.5 feet of actual car
What is ratio?In mathematics, a ratio shows how two numbers are multiplied together. In a bowl of fruit, for instance, the proportion of oranges to lemons is eight to six if there are eight oranges and six lemons. Lemons to oranges are divided 6:8 and oranges to all other fruits are divided 8:14 in a similar fashion.
Here,
A toy Jeep measures 12 1/2 inches.
Before calculating the ratio, let's first convert each size into the same unit of measure and decimal points:
=>12 ½ = 25/2
=> 12.5 inches;
=> 18 ¾ = 75/4
=> 18.75 feet .
The actual length of a jeep is 18.75 feet.
The ratio can now be determined by converting feet to inches.
1 inch of a toy car equals 1.5 feet of an actual car because
=> 1 foot = 12 inches
=> 12.5 inches : 225 inches
=> 225 / 12.5
=> 18 inches
Therefore, every 1 inch of toy car represents 1.5 feet of actual car.
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Point C is the midpoint of line segment AB and point B is between points A and D. If AD = 20 and BD =12 then what is CD?
Answer:
16
Step-by-step explanation:
AB = 20 - 12 = 8
BC = 8 : 2 = 4
CD = 4 + 12 = 16
Answer:
CD = 16
Step-by-step explanation:
Check the image for the steps
1.1\times 10^{4}1.1×10
4
in standard form.
The number 1.1 * 10⁴ in standard form is 11000
How to determine the number in standard formFrom the question, we have the following parameters that can be used in our computation:
Number = 1.1\times 10^{4}1.1×104
Rewrite the given number properly
So, we have the following representation
Number = 1.1 * 10⁴
Solving further, we need to apply the law of indices to expand the exponents
Using the above as a guide, we have the following:
Number = 1.1 * 10 * 10 * 10 * 10
Evaluate the product of the 10's
So, we have the following representation
Number = 1.1 * 10000
Evaluate the products of the 1.1 and 10's
So, we have the following representation
Number = 11000
Hence, the number is 11000
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The low temperature on Saturday was 10 degrees below zero degrees Celsius. On Sunday, the low temperature was 30 degrees
warmer.
Which two statements apply to the low temperature on Sunday?
A Temperature on Sunday was 40°C.
B
C
Temperature on Sunday was 20°C.
The temperature on Sunday was 20 degrees below zero degrees Celsius.
The temperature on Sunday was zero degrees Celsius.
L
E
The temperature on Sunday was 20° C
A grandfather has lived as many years as his grandson lived in months. His son has lived as many weeks as his grandson his lived days. If you add their ages, you would get 120 years. How old is the grandfather?
find the coordinate of the midpoint of a segment with the given endpoints T(-5,4) and D(7,2)
Answer: (-1, 3)
Step-by-step explanation:
Midpoint formula: ((x1 + x2) / 2, (y1+y2) / 2)
((-5+7)/2, (4+2) / 2))
((-2/2), (6/2))
(-1, 3)
rewrite 27 1/3 using roots
The value of the exponent illustrated as 27^1/3 is 3.
How to illustrate the exponent?The exponent is the number of times that a number is multiplied by itself. It should be noted that the power is an expression which shows the multiplication for the same number. For example, in 6⁴ , 4 is the exponent and 6⁴ is called 6 raise to the power of 4.
In this situation, it should be noted that 27^1/3 simply means the cube root of 27. This will give a value of 3.
Check: 3 × 3 × 3 = 27.
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help me lord pls pls
Answer:
.5l means that you are going to add 1/2 cups of lemon juice for every bath that you make. If you made one batch, you would use 1/2 of lemon juice. If you made 2 batches you will add 1 cup of lemon juice and so on.
2s means that you will add 2 cups of sugar for each batch. If you made one batch, you would add 2 cups of sugar, if you made 2 batches you would add 4 cups nd so on.
Step-by-step explanation:
A student with a poor understanding of straight-line graphs writes down some incorrect information
next to each equation. Decide how the error might have been made and then correct the information.
X-2y=4. (Gradient=1)
Answer:
½
Step-by-step explanation:
The coefficient of x is 1 but the equation is not in the form of y = mx + b
x - 2y = 4
-2y = 4 - x
2y = x - 4
y = ½x - 2
Therefore, the gradient is ½
function rule to find f(9).
1
substitute 9 as x because 9 is in the brackets
then follow bidmas
brackets first so -10 + 9 = -1
now indices so square -1 which is 1.
therefore you answer is 1
Charles has 12 coins in his pocket. Some are nickels and some are quarters. If the value of the coins is $2.20, write a system of equations that could be used to find the number of nickels and quarters Charles has in his pocket. Let n represent nickels and q represent quarters. Select the two equations that represent the system of equations described above.
The equations representing the number and value of coins are n + q = 12 and 5n + 25q = 2.20 respectively.
What is a system of linear equations?A system of linear equations is a group of equations having same number of variables and degree.
For the n number of variables n number of equations are required.
On the basis of number of solutions a system of equations can be classified as consistent and inconsistent.
The given problem can be solved as follows,
Suppose the number of nickel and quarter coins are n amd q respectively.
Then, the equation for the total number of coins can be written as,
n + q = 12 (1)
And, the equation for their value is given as,
5n + 25q = 2.20 (2)
Hence, the two equations that can be used to represent the given case are n + q = 12 and 5n + 25q = 2.20 respectively.
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a certain test is worth 135 points. how many points (rounded to the nearest point) are needed to obtain a score of 85%?
To obtain a score of 85% on a test worth 135 points, one needs to get 115 points. By using proportions, we get the required value.
How to write proportions?A proportion is defined as an equality between two ratios.
Consider two ratios a:b and c:d. Then, the proportion we can write,
a: b = c : d
Then, the simplification we have for this proportion is
a/b = c/d or ad = bc
Calculation:It is given that, a certain test is worth 135 points.
One to get 85% on this test, he/she needs to get X number of points.
So, we can write the proportions as
X : 135 = 85 : 100
⇒ X/135 = 85/100
⇒ X = 85/100 × 135
∴ X = 114.75 ≅ 115 points
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Two trains, each moving at 20 miles per hour towards each other, are initially 60 miles apart. A bee starts at the front of one train, flies to the other train, then back to the first train, and so on. If the bee always flies at 30 miles per hour, how far does the bee fly before the trains collide? Hint: For how long does the bee fly?
Answer:
45
Step-by-step explanation:
A group of friends collected toys to donate to children in need. After sorting the toys into
boxes, they found they had 6/7 of a box of stuffed animals, 5/7 of a box of board games, and
1/7 of a box of dolls. In total, how many boxes of toys did the friends collect?
Answer: 12/7
Step-by-step explanation: The answer is 12/7 because here is what we know: A group of friends collected toys to donate to children in need. After sorting the toys into boxes, that's what we know, we also know that they found they had 6/7 of a box of stuffed animals, and we also know that they found 5/7 of a box of board games and
1/7 of a box of doll. What they want to know is In total, how many boxes of toys did the friends collect? so you take 6/7 from the box stuffed animals they found + 5/7 from the box of board games they found which equals 11/7 then you add the 11/7 with the 1/7 the box of dolls they found. In total the friends collect 12/7 boxes. Hope this helps!
Solve each system by elimination: 3x-8y=13 4x-5y=6
Answer:
Your answer is [tex]x = -1[/tex] and [tex]y = -2[/tex]
Step-by-step explanation:
(attached)
PLEASE ANSWER FAST y-1/6=15/18
Ira ran out of time while taking a multiple-choice test and plans to guess on the last 666 questions. Each question has 444 possible choices, one of which is correct. Let x=x=x, equals the number of answers ira correctly guesses in the last 666 questions. What is the probability that he answers fewer than 222 questions correctly in the last 666 questions?.
It is possible to calculate the probability that in the last 6 questions, there were fewer than 2 right answers, which is 53.392%.
What is Probability?The ratio of good outcomes to all possible outcomes of an event is known as the probability. The number of positive results for an experiment with 'n' outcomes can be represented by the symbol x.
The probability of an event can be calculated using the following formula.
Probability(Event) = Positive Results/Total Results = x/n
In order to better grasp probability, let's look at a straightforward application.
Let's say we need to forecast if it will rain or not. Either "Yes" or "No" is the appropriate response to this query.
There is a chance that it will rain or not. Here, probability can be used. Using probability, one may forecast the results of a coin toss, a roll of the dice, or a card draw.
According to our question-
The likelihood that responses to fewer than two of the final six questions were right can be calculated using the procedure below:
There are 6 questions with a total of 4 possible answers, hence the value of p is:
The following formula provides the probability:
The following formula is used to calculate the likelihood that Ira would properly answer exactly 1 of the final 6 questions:
P(X = 1) = 0.35595
P(X = 0) = 0.17797 gives the likelihood that Ira will correctly answer 0 out of the final 6 questions.
Accordingly, the likelihood that the last 6 questions' answers contain fewer than 2 valid responses is: P = 0.17797 + 0.35595.
P = 0.53392
P = 53.392%
Hence, the probability that in the last 6 questions, there were fewer than 2 right answers, which is 53.392%.
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if s ( m ) represents the salary (per month), in hundreds of dollars, of an employee after m months on the job, what would the function r ( m )
The function r ( m ) $12 more than the salary of someone who has worked for m months.
What is function?
A function is a type of rule that produces one output for a single input. Source of the image: Alex Federspiel. This is illustrated by the equation y=x2. Any input for x results in a single output for y. Considering that x is the input value, we would say that y is a function of x.
If we have S(m) represents salary after m months i.e. y=S(m) will be the graph of salary Corresponding to the number of months m.
So, we have [tex]m+12 \geqslant 12$,[/tex]
[tex]$\Rightarrow S(m+12)$[/tex] will give us the value of Salary after 12 months of the Job.
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