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

Question

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

dumbcow · Answer

average speed = total distance/total time
= 600/[300/70 + 300/50]
= 600/(30/7 + 6)
=600/(72/7)
=4200/72
=58.33 mph

toxicsugar22 · Answer

thanks

toxicsugar22 · Answer

can u help me find the time trip to Tahoe

toxicsugar22 · Answer

can u help me

toxicsugar22 · Answer

will u help me

dumbcow · Answer

sorry my computer is being weird
the time = distance/speed
t1 = 300/70 = 4.286
t2 = 300/50 = 6

toxicsugar22 · Answer

ok and how do u write 58 as a simple fraction