Gina drove 36 miles in 3/4 of an hour. The equation 36=3/4 r can be used to find her average rate of speed r in miles per hour. What was Gina’s average rate of speed?
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Answer:
Her average speed is 48 miles per hour.
Step-by-step explanation:
1. You have to do order of operations in reverse (PEMDAS in reverse)
2. Divide 36 by 3/4 which would be to multiply by the reciprocal (multiplying 36 by 4/3)
3. The answer would then be r=48