SOLUTION: Bruce and Maria headed north at 11am at full speed. After 4 hours, Bruce was 16 miles ahead. What did Bruce consider full speed if Maria's speed was 16mph?
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Question 145616: Bruce and Maria headed north at 11am at full speed. After 4 hours, Bruce was 16 miles ahead. What did Bruce consider full speed if Maria's speed was 16mph? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Bruce and Maria headed north at 11am at full speed. After 4 hours, Bruce was 16 miles ahead. What did Bruce consider full speed if Maria's speed was 16mph?
:
Let s = B's speed
:
Write a distance equation: Dist = time * speed
:
B's dist - M's dist = 16 mi
4s - 4(16) = 16
4s - 64 = 16
4s = 16 + 64
4s = 80
s =
s = 20 mph is B's speed
;
:
Check solution:
4(20) - 4(16) = 16
