Answer:
Step-by-step explanation:
Let the number = x
So we are trying to work out what number must be subtract from the numerator and denominator of 5/3 to equal 5/7.
You can write this as:
![\frac{ 5-x}{3 - x} = \frac{5}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B%205-x%7D%7B3%20-%20x%7D%20%20%3D%20%5Cfrac%7B5%7D%7B7%7D)
Then you want to get rid of the fractions so multiply both sides by 3-x
![\frac{5 ( 3 - x)}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B5%20%28%203%20-%20x%29%7D%7B7%7D)
Then multiply both sides by 7
![7( 5 - x) = 5 ( 3 - x)](https://tex.z-dn.net/?f=7%28%205%20-%20x%29%20%3D%205%20%28%203%20-%20x%29)
Multiply it out.
35 - 7x = 15 - 5x
Add 7x to both sides:
35 = 15 - 5x + 7x
35 = 15 + 2x
Subtract 15 from both sides
35 - 15 = 2x
20 = 2x
To find x, divide both sides by 2.
x = 10.
Answer:
C. 3/7 is not a reasonable answer for the fraction of his birthday money Matthew has spent. The fraction should be closer to 1.
Answer:
parallel = 4/3
perpendicular =-3/4
Step-by-step explanation:
Solve for y
-4x+3y=11
Add 4x to each side
3y = 4x+11
Divide by 3
y = 4/3 x +11/3
This is in the form y = mx+b where m is the slope
m =4/3
The parallel line has the same slope
parallel slope is 4/3
The perpendicular line has a negative reciprocal slope
m = -(1 /4/3) = - 3/4
Answer:
the answer is 19yds squared