SOLUTION: If a dental survey of 360 students at RPHS revealed that 135 of them had two or more cavities. If the total school enrollment is 1250, about how many students would you expect to h

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Question 392594: If a dental survey of 360 students at RPHS revealed that 135 of them had two or more cavities. If the total school enrollment is 1250, about how many students would you expect to have two or more cavities?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Let x represent the number out of 1250 expected to have two or more cavities

Question Sets Up the Proportion

+%28135%2F360%29+=+%28x%2F1250%29   |solving for x by cross multiplying

 360x = 135*1250

    x = 135*1250/360

    x = 469,number out of 1250 expected to have two or more cavities