A pilot is flying an airplane. Due to strong winds, the pilot decides to fly 4,000 feet lower to avoid excessive turbulence. It takes the pilot 3.5 minutes to make this adjustment. Interpret the quotient to describe the rate of change in the plane's altitude. Give your answer to the nearest hundredth, and remember the plane is descending.

The quotient that best represents the rate of change in the planes altitude is __ feet/minute

3 answers

The quotient that best represents the rate of change in the plane's altitude is 1142.86 feet/minute.
Use the properties of operations and rules for multiplying and dividing signed numbers to solve

(-4) x (7/5) x (-3/5) divided by (7/15)

A. 9

B. -147/75

C. -9

D. 147/75
To solve this problem, we can follow the order of operations, which is parentheses first, then multiplication and division from left to right.

First, we simplify the expression inside the parentheses:

(-4) x (7/5) x (-3/5) = -4 x 7/5 x -3/5 = (-28/5) x (-3/5) = 84/25

Next, we multiply the result by 7/15:

(84/25) divided by (7/15) = (84/25) x (15/7) = (84 x 15) / (25 x 7) = 1260 / 175 = 9

Therefore, the quotient is 9. So, the answer is A. 9.