SOLUTION: 12 pencils can be purchased with $3. How many pencils can be purchased with $4.50? I tried dividing it but i got 40 cents and then i added and then it gets confusing

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Question 954822: 12 pencils can be purchased with $3.
How many pencils can be purchased with $4.50?

I tried dividing it but i got 40 cents and then i added and then it gets confusing
Found 2 solutions by macston, josmiceli:
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
$3/12=$0.25/pencil
$4.50/$0.25/pencil=18 pencils

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+12+ pencils cost $3.00
+6+ pencils cost $1.50
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+3+ times that number of pencils
will cost +3+ times as much, so
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+9+ pencils cost $4.50