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Grade 7 McGraw Hill Glencoe - Answer Keys
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Independent Practice
Find each unit rate. Round to the nearest hundredth If necessary.
Question 5
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Estimate the unit rate if 12 pairs of socks sell for $ 5.79.
Question 6
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Justify Conclusions The results of a swim meet are shown. Who swam the fastest? Explain your reasoning.
Question 7
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Ben can type 153 words in 3 minutes. At this rate, how many words can he type in 10 minutes?
Question 8
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Kenji buys 3 yards of fabric for $7.47.Then he realizes that he needs 2 more yards. How much will the extra fabric cost?
Question 9
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The record for the Boston Marathon's wheelchair division is 1 hour, 18 minutes, and 27 seconds.
a. The Boston Marathon is 26.2 miles long. What was the average speed of the record winner of the wheelchair division? Round to the nearest hundredth.b. At this rate, about how long would it take this competitor to complete a 30-mile race ?