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A computer printer can print a 840-word document in 20 seconds. At this rate, how many seconds are required to print a document that contains 930 words?
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A computer printer can print a 840-word document in 20 seconds. At this rate, how many seconds are required to print a document that contains 930 words?

User George Sealy
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2 Answers

1 vote
930w(20s/840w)=155s/7

155s/7≈22.14 seconds (to nearest hundredth of a second)

User Ricky
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You can use the equation 840/20=930/x and then cross-multiply to get 18600=840x. Then just divide both sides by 840 to get 22.14
User Guns
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