A plane at an altitude of 20000 feet starts to descend for landing after flying for six hours. The entire flight time was 6 hours 40 minutes. Determine the average rate of descent of the plane

Answers

Answer 1

Answer:

Check the picture below.

so, let's see, the plane departs from (0, 0), the origin, goes up to 20000 feet, sticks around flying for 6 hours, 6hrs = 3600 minutes, (6*60).

so the plane's descent starts off at the point (3600, 20000) down to (3640, 0) as you see in the picture, keeping in mind that average rate of change = slope.

$\bf (\stackrel{x_1}{3600}~,~\stackrel{y_1}{20000})\qquad (\stackrel{x_2}{3640}~,~\stackrel{y_2}{0}) \n\n\n slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{0-20000}{3640-3600}\implies \cfrac{-20000}{40} \n\n\n \cfrac{-5000}{1}\cfrac{ft}{minute}\implies -5000(ft)/(min)$

the slope is negative, since it's a descent, the plane is coming down, not going up over the minutes axis.

Answer 2

Answer:

Answer: 500 feet per minute

Step-by-step explanation:

Landing time 40min with an altitude of 20000 remaining

40=20000 | both sides /40

1=500

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A car salesperson earns 12.5% commission on every car sold. The salesperson sold a car for $17,500.What is the commission earned from the sale? Round your answer to the nearest cent.

Answers

If car salesperson earns 12.5% commission on every car sold. The salesperson sold a car for $17,500. Then 2187.5 is commission earned from the sale

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given,

A car salesperson earns 12.5% commission on every car sold.

The salesperson sold a car for $17,500.

We need to find the commission earned from the sale.

12.5% is to be converted to decimal by dividing with 100.

12.5%=12.5/100=0.125

Now multiply 0.125 with 17500 to find what is 12.5% of 17500

0.125×17500

Two thousand one hundred eighty seven point five

2187.5

Hence 2187.5 is the commission earned by the sale person for selling 17500 car.

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$2187.50 Commission for the sale

What is blank times blank equals 49

Answers

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Answers

Answer:

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Step-by-step explanation:

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Answers

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