The FAA tracks average flight delays. It found that, this year, a particular airline has an average flight delay of 37 minutes. That is 85% longer that the airline's average for the previous year. What was its average flight delay last year?____ minutes
Q. The FAA tracks average flight delays. It found that, this year, a particular airline has an average flight delay of 37 minutes. That is 85% longer that the airline's average for the previous year. What was its average flight delay last year?____ minutes
Define Average Flight Delay: Let x be the average flight delay last year.Calculate the expression for 85% longer than the previous average.Expression for current average: x+85%(x)= x+0.85x
Calculate 85% Longer Expression: We found: Expression for current average is x+0.85xWe know: Value for current average is 37 minutesSet up an equation to find x, the previous average.Equation for current average is 37=x+0.85x.
Set Up Equation for Previous Average: We found: 37=x+0.85xSolve for x.x+0.85x=371.85x=37x=1.8537x=20
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