toxicsugar22
  • toxicsugar22
Andy drives 300 miles to Lake Tahoe at 70 miles per hour and returns home at 50 mph. What is his average speed for the round trip. (It is not 6o miles per hour.) Write expressions for the time it takes for each leg of the trip if Andy drives a distance d, at speed r base 1 and returns at speed r base 236 minutes ago
Mathematics
jamiebookeater
  • jamiebookeater
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dumbcow
  • dumbcow
average speed = total distance/total time = 600/[300/70 + 300/50] = 600/(30/7 + 6) =600/(72/7) =4200/72 =58.33 mph
toxicsugar22
  • toxicsugar22
thanks
toxicsugar22
  • toxicsugar22
can u help me find the time trip to Tahoe

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toxicsugar22
  • toxicsugar22
can u help me
toxicsugar22
  • toxicsugar22
will u help me
dumbcow
  • dumbcow
sorry my computer is being weird the time = distance/speed t1 = 300/70 = 4.286 t2 = 300/50 = 6
toxicsugar22
  • toxicsugar22
ok and how do u write 58 as a simple fraction

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