Cathy ran for 30 min at a rate of 5.5 mi/h. then she ran for 15 min at a rate of 6 mi/h. how many miles did she run in all?
1 answer:
30 mins × 5.5mi/h = 165
15 mins × 6mi/h = 90
add 165 and 90 together
165 + 90 = 255
255 miles
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