Serena’s average speed during her training run was 8 kilometers per hour over the 2 hours that she ran. What was the total distance that she ran?Use the formula d = rt, where d represents the distance, r represents the rate, and t represents the time.
Answer
A
4 km
B
6 km
C
8 km
D
16 km
Explanation
Use the distance formula d = rt. Serena ran at 8 kilometers per hour for 2 hours, so d = 8 × 2 = 16 kilometers. The correct choice is 16 km.
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