First, set up a ratio:
![\frac{30}{100} = \frac{15,680}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B30%7D%7B100%7D%20%3D%20%20%5Cfrac%7B15%2C680%7D%7Bx%7D%20)
The first fraction is the percentage (30% and
![\frac{30}{100}](https://tex.z-dn.net/?f=%20%5Cfrac%7B30%7D%7B100%7D%20)
are the same thing) and the second is the loan payment (which is equal to the 30 in the first fraction) over their annual income (
![x](https://tex.z-dn.net/?f=x)
).
First you divide $15,680 by 30, then multiply that quantity by 100. The value calculated then replaces
![x](https://tex.z-dn.net/?f=x)
in your second fraction:
They are all divisible by 3...thats something
9a-4y
because -5y and a positive Y combine to a -4y
Answer:
y = 4x + 5
Step-by-step explanation:
y - y1 = m(x-x1)
y + 7 = 4 (x + 3)
y + 7 = 4x + 12
y + 7 - 7 = 4x + 12 - 7
y = 4x + 5