Algebra 2 math help!
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Algebra 2 math help!

[From: ] [author: ] [Date: 12-05-15] [Hit: ]
.haha anyways please help me!Andys average driving speed for a 5 hr trip was 50 mph. During the first 3 hrs he drove 40 mph, What was his average speed for the last 2 hrs of his trip??......
In my AP calc class we are reviewing for the CST and i totally forgot how to do these types of problems. i feel a bit silly....haha anyways please help me!

Andy's average driving speed for a 5 hr trip was 50 mph. During the first 3 hrs he drove 40 mph, What was his average speed for the last 2 hrs of his trip??

thank you!

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not sure if this is correct but 5 hr at 50 mph so 5 x 50 = 250. he drove 3 hours at 40 mph 3 x 40 = 120. then 250 - 120 = 130. then 2 hours left so divide by 2 = 65mph
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