Sam paid $8.28 for 18 stamps. At this rate, how much would it cost sam to buy 12 stamps?
2 answers:
1) $8.28 divided by 18 = unit rate $8.28 ÷ 18 = $0.46 <<<< unit rate 2) 0.46 × 12 = $5.52 <<< final answer!!!! Hopes this helps!
First we want to find how much it costs for 1 stamp, so we do 8.28 divided by 18, which equals 0.46. Then, we multiply 0.46 and 12, which is 5.52. Therefore, it would cost $5.52 to buy 12 stamps.
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