Question

Two students went to the school store. Each had a $20 bill. Jacob bought 3 of an item and received change. Quinn bought 7 of the same item and also received change. The total amount of change between them was $25. Write and solve an equation to find which item the students bought. (PLS HELP MEH! PLS I HATE THIS STUFF BUT I LOVE IT MAH TEACHERS STOOPID!)

Answer 1

(20 - 3x) + (20 - 7x) = 25 with x being the price of the item bought. (I think)

Explanation:

I believe this would be the equation, I'm not sure what the answer would be though, sorry about that.

Answer 2

X= $1.5

Explanation:

y=mx +b

Y= total amount they had, M= the amount they bought, X= how much the item cost, B= the amount they of change they had left

40= 10x + 25

Subtract 25 from both sides

40-25= 15

15= 10x

divide 10 from both sides

15/10= 1.5

x= 1.5