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lianna [129]
2 years ago
5

Business trip of 325.5 miles. Averaged 49 mph for the first part of the trip and 58 mph for the second part. If the trip took 6

hrs, how long was traveled?
Mathematics
1 answer:
Mama L [17]2 years ago
5 0

<span>Let t = travel time at 58</span>

<span>and

(6-t) = travel time at 49

distance at 58 + distance at 49 = 325.5 mi</span>

<span>
58t + 49(6-t) = 325.5
58t + 294 - 49t = 325.5</span>

9t+294 = 325.5

9t =31.5

T = 31.5/9 = 3.5 hours at 58 mph

6-3.5 = 2.5 hours at 49 mph

 

<span> Check:</span>

58*3.5 = 203

49*2.5= 122.5

203+122.5 = 325.5


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