A large box costs $3 more than a small box. If 8 small boxes plus 5 large boxes cost $184, find the cost of one of each size box.

Question

Let x = cost of one small box

let y= cost of one large box

Answer 1

y=x+3

8x+5y=184

8x+5(x+3)=184

13x=169

x=13 (small box)

y=x+3=13+3=16 (large box)

 

Check it: 8*13+5*16=13*13+15=184