Gail bought a new baseball cap for $7.50 which was 1/3 off the oringinal price. What was the original price?
The answer is is $22.50
This problem can be solved with proportions/ratios and cross multiplication
To set it up, you can write out the ratios like this
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where x=original price
or you can first write it like this, following the wording of the sentence
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and then divide to get
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Now cross multiply (multiply numbers diagonal from each other together)
($7.50)(3)=(1)(x)
$22.50=x
The answer is is $22.50