x = -14/9 is the solution to the equation ( 7x + 6 )/4 = ( 2x − 3 )/5 in a simplified improper fraction form.
What is the value of x in the given equation?Given the data in the question;
( 7x + 6 )/4 = ( 2x − 3 )/5x = ?To solve for x, first we cross multiply
( 7x + 6 )/4 = ( 2x − 3 )/5
5( 7x + 6 ) = 4( 2x − 3 )
Remove the parenthesis using distributive property
7x×5 + 6×5 = 2x×4 − 3×4
35x + 30 = 8x - 12
Collect like terms by moving all terms containing x to the left and all constant terms to the right side of the equation.
35x - 8x = -12 - 30
27x = -12 - 30
27x = -42
Divide both sides by 27
27x/27 = -42/27
x = -42/27
x = -14/9
Therefore, the value of x in the given equation ( 7x + 6 )/4 = ( 2x − 3 )/5 is -14/9.
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Answer:
2/3
Step-by-step explanation:
If Aaron buys 5 watermelons for 9 how much would 4 cost at the same rate?
Answer: $ 7.20
Step-by-step explanation:
(9x4)/5
36/5
= 7.2
= $7.20
Write an equation in point-slope form of the line that passes through the given points, then write the equation in slope-intercept form.
(-9,7) (9,1)
What is the point-slope form of the equation of the line?
Answer:
Equation of line is given as y = mx + c, where m is the slope and c is the y-intercept.
First find the slope.
Formula for slope is given as (y2-y1)÷(x2-x1) or (y1-y2)÷(x1-x2).
Slope = (7-1)÷(-9-9)
= -6/18
= -1/3
Equation of line is y = -1/3 + c.
Substitute either one of the points into the equation to find c.
1 = -1/3(9) + c
c = 4
Hence equation of line is y = -1/3x + 4
Which set of ordered pairs does not represent a function?
{(8,-2), (6,-1), (4,1), (0,1)}
{(8,4), (1,5), (-7,7), (9,5)}
{(4,-6), (-3,2), (7,-1), (-6, -4)}
{(-9,3), (8,7), (-9, -9), (2, 4)}
{(-9,3), (8,7), (-9, -9), (2, 4)}
=======================================================
Explanation:
To find an example of a non-function, we look for (x,y) points where x repeats itself. That occurs in choice D where we have (-9,3) and (-9,-9) in the same function set.
The input x = -9 leads to multiple outputs y = 3 and y = -9 simultaneously. This is not allowed if we wanted a function.
A function is only possible if each input x leads to exactly one y output.
So this is why we look for repeated x values when trying to find non-functions. Choices A, B and C all have unique x values that don't repeat, which means those choices represent functions.
Side note: The y values can repeat, but the function won't be one-to-one.
Can somebody help me with this please?
From the given figure < BAC = 180 - ( < ABC + < BCA ) because they are sum of angles in a triangle
How to find < BACgiven data
< ABC = 52 degrees
< BCA = 88 degrees
calculation for angle BAC
< ABC + < BCA + < BAC = 180 degrees ( sum of angles in a triangle )
< BAC = 180 - ( < ABC + < BCA )
< BAC = 180 - < ABC - < BCA
plugging in the values gives
< BAC = 180 - 52 - 88
< BAC = 180 - 140
< BAC = 40 degrees
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help fast i need to get this answer
Answer:
x = 3
Step-by-step explanation:
Plug in 1 for x:
- | 1 + 1 | + 5 = - |2| + 5 = -2 + 5 = 3
which numbers are my Ys (-8-6) and (-1,0)
The numbers which correctly represents the y-coordinates of the given pairs; (-8-6) and (-1,0) as in the task content are; -6 and 0 respectively.
What is the xy- coordinate plane?It follows from simple definition that the x -y plane, is a two dimensional plane which contains the x and y axis. The x and y axis happen to be used in the description of plane shapes which are two- dimensional in nature.
Also, it is noteworthy that each point on the xy-coordinate is described by a pair of coordinates and takes the form; (x, y).
In which case, the x-coordinate is written first and y-coordinate is written second as indicated above.
On this note, the y's of the pair of coordinates, (-8-6) and (-1,0) as given in the task content by convention can be observed to be; -6 and 0 respectively.
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Flora is buying dog food for her dog. She wants to buy enough to last five weeks (35 days). If her dog eats 2 cups in a day, and there are 24 cups in each bag, how many bags of dog food does Flora need to buy to last 5 weeks? ⛔️ SOLVE USING A PROPORTIONAL RELATIONSHIP GRAPH! ⛔️
When the second number in the ordered pair, b, is not equal to 0, the ratio is expressed as a/b.
Flora needs 3 bags of dog food.
How to find the food bags needed?When the second number in the ordered pair, b, is not equal to 0, the ratio is expressed as a/b.
An equation in which two ratios are made equal is known as a percentage.
As an illustration, you could express the ratio as 1: 3 if there is 1 guy and 3 girls.
Given,
Dog eats 2 cups in a day
There are 24 cups in each bag
Solution:
Dog eats one bag of food in 24 cups/2 cups = 12 days
One food bag is sufficient to feed the dog for 12 days
For 35 days, the number of food bags needed is
1/x = 12/35 where x be the number of food bags needed for the dog.
x = 2.92
That is 3 bags of dog food are needed for 35 days to feed the dog.
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x/16 = 7/10
FIND X PLEASE
Answer:
x=11.2
Step-by-step explanation:
x/16=7/10
x=7/10×16
x= 11.2
Step-by-step explanation:
First, let's write down the equation properly:
[tex] \frac{x}{16} = \frac{7}{10} [/tex]
Then we follow these simple steps to solve the equation to find the value of x.
Cross multiply fractions.10x = 112
Divide both sides by 10.x = 11.2
True or false? A corollary is a statement that can be easily proved using a
theorem.
O A. True
OB. False
SUBMIT
answer to this question for anyone who needs it
The theorem can be used to readily show the corollary because, according to its statement, it considerably depends on it. Consequently, the assertion is accurate.
The given statement is True.
Is the meaning of corollary?The term "corollary" refers to an outcome that follows logically from another action. You could claim that your rediscovered passion of reading is a corollary to the recent opening of a bookstore in your area. The term corollary describes the result of an action, such as the need to study more as a corollary to receiving a poor grade.
Briefing:A theorem states that two angles that add up to 180° and form a straight line are regarded as "supplementary."
A corollary of this is known as the "Vertical Angle Theorem," which asserts that where two lines intersect, their angles across from each other are equal (in the diagram, a=c and b=d).
The theorem can be used to readily show the corollary because, according to its statement, it considerably depends on it. Consequently, the assertion is accurate.
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6. Joshua took a bus from Orlando to Atlanta. The bus traveled 420 miles in 6 hours. What was the
average speed of the bus?
a) 60 miles per hour
b) 65 miles per hour
c) 70 miles per hour
d) 75 miles per hour
A saleswoman earns 9% commission on all the merchandise that she sells. Last month she sold $6000 worth of merchandise. How much commission (in dollars) did she earn last month?
Answer: she gets 540
Step-by-step explanation:
She earns 540 dollars since the saleswoman only gets 9% of it and she sold $6000 dollars worth of merchandise you divide by percentage
Example: 1. Find the percentage of the original or real number. In this case, it's 500.
2. Multiply the final number by 100. 500 x 100 = 50,000.
3. Divide the result of the multiplication by the percentage. 50,000 divided by 40% = 1,250. Thus, 500 is 40% of 1,250.
5. The elevation of the Dead Sea is -1,286 feet. (The Dead Sea is below sea level.) Mt.
McKinley has an elevation of 20,320 feet. What is the difference in the elevation between
the Dead Sea and Mt. McKinley?
22-13 You add
Answer:
21606 ft
Step-by-step explanation:
get difference between elevations with subtraction
20320 - - 1286
20320 + 1286
21606 ft
The graph of a function f(x) passes through the following points:
(0,-2), (1,0), (-1,0)
Which of the following could be f(x)?
> f(x) = -2x - 2
> f(x) = 2x - 2
> f(x) = (2\sqrt[x])-2
> f(x) = 2x^2 - 2
*109
eight feral 103721
Darcie wants to simplify 20 over 24 fully.
What number should she divide both the
numerator and the denominator by in order
to simplify the fraction fully in one step?
Answer: 4
Step-by-step explanation:
This simplifies to 5/6.
So 20 / 5 = 4
and 24 / 6 = 4
find the unit rate if suzie reads 45 books in 15 days
Step-by-step explanation:
she reads 45 books in 15 days.
so, the reading rate is 45/15.
now, a ratio is just a fraction with a special meaning, but calculations, simplifications and so on are all the same.
so,
45/15 = 9/3 = 3/1 = 3
that means she reads 3 books in 1 day.
PLEASEEEEE HELP IDEK WHAT TO DO
The evaluated value of the function is as follows:
g(10) = - 29f(3) = 16h(-2) = -6j(7) = 23h(a) = 12 / ag(b) + g(c) = -3b - 3c + 2x = -5x = -6x = 4How to evaluate a function?The functions can be evaluated as follows:
To evaluate a function is to replace (substitute) its variable with a given number or expression.
In other words, evaluating a function means to substitute a variable with its given number or expression.
Therefore,
g(x) = -3x + 1
f(x) = x² + 7
h(x) = 12 / x
j(x) = 2x + 9
Hence,
a.
g(10) = -3(10) + 1
g(10) = -30 + 1
g(10) = - 29
b.
f(3) = (3)² + 7
f(3) = 9 + 7
f(3) = 16
c.
h(-2) = 12 / -2
h(-2) = -6
d.
j(7) = 2(7) + 9
j(7) = 14 + 9
j(7) = 23
e.
h(a) = 12 / a
h(a) = 12 / a
f.
g(b) + g(c) = -3(b) + 1 + -3(c) + 1
g(b) + g(c) = -3b + 1 - 3c + 1
g(b) + g(c) = -3b - 3c + 2
h.
find x when g(x) = 16
16 = -3x + 1
16 - 1 = -3x
15 = -3x
x = 15 / -3
x = -5
j.
find x when h(x) = -2
-2 = 12 / x
-2x = 12
x = 12 / -2
x = -6
k.
find x when f(x) = 23
23 = x² + 7
23 - 7 = x²
x² = 16
square root both sides
x = √16
x = 4
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Given the equation 13.25y = 79.5, determine the value of y.
6.00
66.25
92.75
1053.38
Given the equation 13.25y = 79.5, the value of y is A. 6.00.
What is an equation?An equation is a mathematical statement that states that two mathematical expressions are equal in value.
Equivalent values are also expressed as algebraic equations sharing the same root.
We depict equations by using the equation symbol (=).
13.25y = 79.5
y = 6 (79.5/13.25)
Check:
13.25y = 79.5
13.25(6) = 79.5
79.5 = 79.5
Thus, given the equation 13.25y = 79.5, the value of y cannot be 66.25, 92.75, or 1,053.38 but Option A.
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Please answer asap
Thank you
Question 4 of 10
What is the solution to the equation below? Round your answer to two
decimal places.
log₂ (2x-1)=3
O A. x=5
B. x = 4
O C. X=9/2
O D. X=7/2
The value of x from the given equation is 9/2
The given equation is
log₂(2x - 1) = 3
The general form of logarithm with base 2 is
log₂ N = x
Conversion of the logarithm to exponential form is
2ˣ = N
where x is the log₂ of N
x is the number of times number '2' should be multiplied by intself to obtain n
Using this conversion in the above equation,
log₂(2x - 1) = 3
(2x - 1) = 2³
(2x - 1) = 8
2x - 1 = 8
2x = 8 +1
2x = 9
x = 9/2
Therefore the value of x is 9/2
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Find the x intercept and y intercept x + 18 = 9y
Answer:
x = 72 and y = 0 im just guessing so dont be completey
a 13-foot ladder is leaning against a wall. if we pull the ladder away from the wall at a rate of 1ft/s, how fast is the top of the ladder moving down the wall when the bottom of the ladder is 12ft from the wall?
After solving the question using Pythagoras' theorem we get, The ladder moving down the wall at 8 feet per second.
According to the question,
The bottom(base) of the ladder is 12 feet,
the height of the ladder is 13 feet.
Now, We have to find the top of the ladder moving down the wall
by using Pythagoras' theorem,
hypotenuse ^2 = base^2 + perpendicular ^2
13^2 = x^2 + y^2
169 = x^2 + y^2
After using Pythagoras' theorem
we have this equation and now we will differentiate both sides:
0 =2x*dx/dt + 2y*dy/dt
0 =24*1 + 3* dy/dt
dy/dt = - 8 feet per second
Positive whole number we have to take.
So, dy/dt = 8 feet per second
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What is the vertex of the graph of 3x^2 - 6x + 7?
Answer: (1,4)
Step-by-step explanation:
y = 3x^2 - 6x + 7
the daily useage time on the apple iphone is normally distributed with mean 5.4 hours and standard deviation 1.2 hours. suppose you survey 5 of your friends who have iphones. what is the probability that their mean useage time is between 4 and 7 hours? round your answer to three decimal places.
0.868 is the probability that their mean useage time is between 4 and 7 hours.
What are examples and probability?
It is predicated on the likelihood that something will occur. The justification for probability serves as the basic foundation for theoretical probability. For instance, the theoretical chance of receiving a head while tossing a coin is 12.Given, population mean (μ) = 5.4
population standard deviation (σ) = 1.2
Sample size (n) = 5
Probability that the sum of their useage time is less than 30
= Probability that the sample mean is less than (30/5 = 6)
= p(x<6)3
Z score
= x - μ/σ/√n
= 6 - 5.4/1.2/√5
= 0.6/1.2/2.236068
= 0.6/0.536656
= 1.11803
Area to the left of (Z = 1.11803) = 0.86822 = 0.868
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if a circle has a radius of 7 m then what is the circumference exactly
Alfred is picking up chicken and steak to grill at a party
later that day. He has $60 to spend on the 30 pounds of
meat he needs for the party. The chicken is $1.50 per lb,
and the steak is $2.40 per lb.
Which graph models this situation, where cis pounds of
chicken, and s is pounds of steak?
Answer:
The graph should look like the one below.
Step-by-step explanation:
C is lbs of chicken
S is pounds of steak
Alfred spent 30 pounds of meat for the party:
c + s [tex]\leq[/tex] 30
Alfred spend $60 on the 30 lbs of meat.
The chicken is $1.50 per pound and the steak is $2.40 per lb then
1.5c + 2.50 [tex]\leq[/tex] 60
0.5c + 0.85 [tex]\leq[/tex] 20
The linear inequalities system that models situation is:
0.5c + 0.85 [tex]\leq[/tex] 20
c + s [tex]\leq[/tex] 30
c [tex]\geq[/tex] 0
s [tex]\geq[/tex] 0
The Graph:
g(x)=1/4x+1
what is g(-16)?
When we're solving with functions, it's no different than solving from a regular equation.
In most cases, we only need to substitute x with a given value.
Solving the Question
[tex]g(x)=\dfrac{1}{4}x+1[/tex]
⇒ To find g(-16), plug in -16 as x:
[tex]g(-16)=\dfrac{1}{4}(-16)+1\\\\g(-16)=-4+1\\\\g(-16)=-3[/tex]
Answer-3
f(x) = 3 x + 1 and g (x) = 2x - 3. find f (g(x)) and g (f(x))
Step-by-step explanation:
f(x} = 3x + 1
g(x} = 2x -- 3
f(g(x)) = 3x + 1. (Calm down right?)
Let the x in the expression be (2x -- 3)
N.B x = g{x}
f(g(x)) = 3(2x --3} + 1
Open bracket
f(g(x)) = 6x -- 9 + 1
f(g(x)) = 6x -- 8...
2... Solve for g(f(x)), using the same strategy
g(f(x)) = 2x -- 3
x = f(x)
g(f(x)) = 2(3x + 1) -- 3
g(f(x)) = 6x + 2 -- 3
g(f(x)) = 6x -- 1
#AllonGod
Answer:
Step-by-step explanation:
f(g(x)) means substituting g(x) in f(x)
ie, 3(2x-3)+1 = 6x-9+1 = 6x - 8
g(f(x)) means substituting f(x) in g(x)
ie, 2(3x+1)-3 = 6x2-3 = 6x - 1
let’s review some basics of probability. a bag of skittles has 9 reds, 10 oranges, 7 yellows, 8 purples, and 6 greens. what is the probability of a red skittle if one is selected at random?
Answer:
7/20
Step-by-step explanation:
is always right use without the s
If the measure of angle 2 is 70 degrees, what is the measure of angle 7?
A. 70; Ls 2 and 7 corresponding angles
B. 70; Ls 2 and 7 are alternate exterior angles
C. 120; 2s 2 and 7 are supplementary angles
D. Unable to determine
Answer:
B
Step-by-step explanation:
∠ 2 and ∠ 7 are alternate exterior angles and are congruent, then
∠ 7 = ∠ 2 = 70°
Find the exponential function in the form y=a*b^x that passes through the point (0,10) and (3,80).
[tex]{\Large \begin{array}{llll} y = ab^x \end{array}} \\\\[-0.35em] ~\dotfill\\\\ \begin{cases} x=0\\ y = 10 \end{cases}\implies 10=ab^0\implies 10=a(1)\implies 10=a~\hfill \underline{y = 10b^x} \\\\[-0.35em] ~\dotfill\\\\ \begin{cases} x = 3\\ y = 80 \end{cases}\implies 80=10b^3\implies \cfrac{80}{10}=b^3\implies 8=b^3 \\\\\\ \sqrt[3]{8}=b\implies 2=b~\hfill \underline{y = 10(2)^x}[/tex]