Asked by Tim
This is soooo confusing!
An airplane flies from New Orleans, Louisiana, to Atlanta, Georgia, at an average rate of 320 miles per hour. The airplane then returns at an average rate of 280 miles per hour. The total travel time is 3 hours.
A. Define a variable for the flying time from New Orleans to Atlanta. Write an expression for the travel time from Atlanta to New Orleans.
B. Write and solve an equation to find the flying time from New Orleans to Atlanta.
An airplane flies from New Orleans, Louisiana, to Atlanta, Georgia, at an average rate of 320 miles per hour. The airplane then returns at an average rate of 280 miles per hour. The total travel time is 3 hours.
A. Define a variable for the flying time from New Orleans to Atlanta. Write an expression for the travel time from Atlanta to New Orleans.
B. Write and solve an equation to find the flying time from New Orleans to Atlanta.
Answers
Answered by
Reiny
You are going to use the formula
distance = rate x time
time = distance/rate
A) let the time taken for NO to A flight be t hrs
then time taken for A to NO flight is 3-t hrs
B)
320t = 280(3-t)
320t = 840 - 280t
600t = 840
t = 840/600 = 1.4
distance = rate x time
time = distance/rate
A) let the time taken for NO to A flight be t hrs
then time taken for A to NO flight is 3-t hrs
B)
320t = 280(3-t)
320t = 840 - 280t
600t = 840
t = 840/600 = 1.4
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