Question

Hector spent $43.10 at the post office. He bought four times as many $0.49 stamps as $0.21 stamps. How many of each did he buy?

Answer 1

number of 21s --- x

number of 49s ---- 4x

21x + 49(4x) = 4310

solve for x

(21 cent stamps ??? time to get new textbooks)