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Ivan
3 years ago
7

A cell phone plan costs $20 a month and includes 200 free minutes. Each additional minute costs 5 cents. Assume that you use you

r cell phone for at least 200 minutes a month. If x is the total number of minutes a month, then your total cost C is given by:
Mathematics
1 answer:
Korolek [52]3 years ago
5 0

Answer:

The total cost C  = $10 + $0.05·x

Step-by-step explanation:

The given parameters are

The cost of the cell phone plan per month = $20

The number of minutes of free calls that one can make in a month = 200 minutes

The cost of additional minutes of cell phone call = 5 cent

5 cents to a dollar = $0.05

The total number of minutes of calls made in a month = x

The time duration of a person's usage of the cell phone in a month > 200 minutes

The total cost C of a person's usage per month is given by;

C = $20 + $0.05 × (x - 200) = $20 + 0.05·x - $10

C = $10 + $0.05·x

Where x > 200.

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VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.
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(80, 120)

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The figure above shows the probability density function for the random variable x. What is P(3≤x<7)?
qwelly [4]

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<h3>How to evaluate the probability expression?</h3>

The expression is given as: P(3≤x<7)

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