Henry spent $31.50 on 3.5 lb of cookies how much would it cost him to purchase 5 lb of cookies at the same price?

Question

Ratio,rates,and division based question

Answer 1

This is a ratio problem.

 

31.50/3.5lb = X/5lb

5(31.50) = 3.5X

147.5 = 3.5X

X = 45 = $45

It would cost him $45