Write a system of equations to describe the problem situation. Use guess and check to solve the problem.
An airplane flies eastbound from Boise to Chicago, covering the 1400 miles with the wind in 4 hours. A return flight against the same wind takes 5 hours. Find the speed of the wind, w.
A) w = 30 mph
B) w = 35 mph
C) w = 40 mph
D) w = 25 mph
E) w = 20 mph
B) w = 35 mph
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A. No B. Yes
Solve. Round to the nearest percent if necessary.Enrollment in a class at a local college increased from 140 to 168. What was the percent of increase?
A. 17% B. 20% C. 120% D. 28%
Evaluate the function for the given value. Round to the nearest thousandth.f(x) = e(2x + 1); f
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Select the graph of the function below. Include two full periods.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?