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lidiya [134]
3 years ago
10

John's cell phone gives him 1250 minutes for $25. He used 1300 minutes. How much will his cell phone company bill him for?

Mathematics
2 answers:
Monica [59]3 years ago
4 0
Its would be 26$ because 1250 divided by 25$ is 50 and 1300 divided by 50 is 26$
kondaur [170]3 years ago
3 0

Answer:

$26.

Step-by-step explanation:

We have been given that John's cell phone gives him 1250 minutes for $25. We are asked to find John's bill for 1300 minutes.

First of all, we will find charges per minute by dividing $25 by 1250 as:

\text{Charge per minute}=\frac{\$25}{1250}

\text{Charge per minute}=\$0.02

Now, we will multiply 1300 by $0.02 to find John's bill.

\text{John's bill}=\$0.02\times 1300

\text{John's bill}=\$26

Therefore, John's company will charge him $26 for 1300 minutes.

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Answer:

Hence, the average rate of change is:

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Step-by-step explanation:

We are asked to calculate the average value of the function:

f(x)=x^2-\dfrac{1}{x}-4 in 2 ≤ x ≤ 6

The average rate of change of the function f(x) in the interval 2 ≤ x ≤ 6  is given as:

\dfrac{f(6)-f(2)}{6-2}\\\\=\dfrac{f(6)-f(2)}{4}

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f(6)=36-\dfrac{1}{6}-4\\\\f(6)=32-\dfrac{1}{6}\\\\f(6)=\dfrac{191}{6}

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Hence, the average rate of change is:

\dfrac{97}{12}

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3 years ago
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