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miv72 [106K]
3 years ago
7

What is a differential equation

Mathematics
1 answer:
pickupchik [31]3 years ago
5 0
A differential equation is one that contains the derivative of a function.  For example f(x) + 3 = 4f'(x) - 2.  Usually you will be given one of the functions and initial conditions if you have to solve.
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Someone please help :(
riadik2000 [5.3K]

Answer:

y = -0.2x + 8

Step-by-step explanation:

To write a linear function, calculate the rate of change of the gallon of water leaving the tank and the starting level.

The function will describe the number of gallons over time or (time, gallons).

This means the function has data points (1, 7.8) and (9, 6.2).

Use the rate of change or slope formula to calculate it.

m = \frac{7.8 - 6.2}{1 - 9} =\frac{1.6}{-8} = -0.2

This means that for the formula y = mx+b then m = -0.2.

This also means that after losing 0.2 gallons the first hour it was at 7.8. So the starting value is 8 gallons.

The equation is y = -0.2 x + 8.

5 0
3 years ago
jenny receives total employee benefits that are 24.5% of her gorss annual pay.if jenny has a gross annual pay of 70,000 how much
patriot [66]
You can change 24.5% by moving the decimal point
24.5%=.245
70,000 x .245=$17,150
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3 years ago
Kate paid $27 for a dress that was on sale at 10% off. What was the original price for this dress?
wolverine [178]
Hope u understand...

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3 years ago
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You spend 90 minutes wrapping gifts and baking cookies. The ratio of time spent on wrapping gifts to time spent on baking cookie
Darya [45]

Answer: 42

Step-by-step explanation:

7 * 90/15 = 42

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a farmer needs to buy fertilizer for his farmland. The instructions on the bag of fertilizer say 49.5 lb of fertilizer is needed
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Answer:

The farmer can cover approximately 40 acres of land with 2,000 pounds of fertilizer

Step-by-step explanation:

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