SOLUTION: A car drives 400 miles at 60 mph then 150 miles at 40 mph then 10 miles at 25 mph.How long is the full driving time for the trip ?

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Question 1070747: A car drives 400 miles at 60 mph then 150 miles at 40 mph then 10 miles at 25 mph.How long is the full driving time for the trip ?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+t+=+d%2Fr+
----------------
(1)
+t%5B1%5D+=+400%2F60+
+t%5B1%5D+=+6+%2B+2%2F3+ hrs
+%282%2F3%29%2A60+=+40+
6 hrs and 40 min
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(2)
+t%5B2%5D+=+150%2F40+
+t%5B2%5D+=+3+%2B+3%2F4+
+%283%2F4%29%2A60+=+45+
3 hrs and 45 min
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(3)
+t%5B3%5D+=+10%2F25+
+t%5B3%5D+=+2%2F5+
+%282%2F5%29%2A60+=+24+
24 min
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Add the hrs
+6+%2B+3+=+9+ hrs
Add the min
+40+%2B+45+%2B+24+=+109+
+109%2F60+=+1+%2B+49%2F60+ or
1 hr and 49 min
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The total driving time is:
10 hrs and 49 min
* check the math *