SOLUTION: Please help me solve this a car traveled 240 miles 30 at 20 miles per hour and the rest at 60 miles per hour how long does it take

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Question 708939: Please help me solve this
a car traveled 240 miles 30 at 20 miles per hour and the rest at 60 miles per hour how long does it take
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
If the car traveled 30 mi at 20 mi/hr,
+d+=+r%2At+
+30+=+20%2At+
+t+=+3%2F2+ hrs
-------------------
+240+-+30+=+210+ mi
+d+=+r%2At+
+210+=+60%2At+
+t+=+21%2F6+
+t+=+7%2F2+ hrs
-------------------
The total time is
+3%2F2+%2B+7%2F2+=+10%2F2+
+10%2F2+=+5+
The 240 mile trip took 5 hrs