Question

Sam paid $8.28 for 18 stamps.at this rate,how much would it cost Sam to buy 12 stamps

Answer 1

$5.52 @ 46 cents a stamp

Answer 2

Answer: It costs $5.52 to Sam to buy 12 stamps.

Explanation:

Given: Sam paid $8.28 for 18 stamps.

Thus, the cost of 18 stamps = $8.28

Then the cost of 1 stamp=
`(8.28)/(18)`

Thus, the cost of 1 stamp=$0.46

With the same rate , the cost of 12 stamps=
`0.46*12`

Therefore, the cost of 12 stamps= $5.52

hence, it costs $5.52 to Sam to buy 12 stamps.