Given that y=kx
After substituting any of the given values, we will get constant k as -0.75 or -3/4
So the answer is B. -3/4
First Eliminate the opposites -y - 5 + y + 2 (2y - y) -> -5+2(2y-y)-3 Then collect like terms -y - 5 + y + 2 (2y - y) -> -5 + 2y - 3 calculate the difference -5 + 2y - 3 -> -8 + 2y
Multiply the cost per yard by the number of yards bought.
Change 3 1/2 to an improper fraction:
3 1/2 = 7/2
Now you have 7/2 x 5/8
Multiply the top numbers together and then the bottom numbers together:
(7 x 5) / (2 x 8) = 35/16
Now rewrite the improper fraction as a proper fraction:
2 3/16 which would be $2.19
C). In step 2, he needed to divide both sides of the equation by 5.
