Question

Yani buys a certain brand of cereal that costs $10 per box. Yani changes to a super-saving brand of the same size. The equation shows the price, y, as a function of the number of boxes, x, for the new brand.

Answer 1

Part A: If Yani's old cereal preference was $10, and the equation shows that the new cereal preference is $7, if I subtract the amount of the new one from the old, I'll get a total of $3.

Part B: For the old cereal preference, I have to multiply the cost of the cereal by the amount of times Yani buys it per month. So, 10(5) = $50. And the same with the new cereal preference 7(5) = $35. Now I have to subtract the amount of the new from the old once again. Yani will save $15 a month

Explanation:

Answer 2

Y=10
Y=7x
10=7x
7/10= 1.43
A.$1.43
1.43•5=$7.15
B.$7.15
I think this is the answer