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Brut [27]
3 years ago
8

A phone company has two long distance calling plans. The first plan is $25 per month plus $0.01 per minute of long distance call

ing after the first 100 minutes. The second plan is $10 per month plus $0.05 per minute of long distance calling.
How many minute of long distance calls will it take for the plans to cost the same amount?
Mathematics
2 answers:
Fittoniya [83]3 years ago
6 0

Answer:

286 minutes

Step-by-step explanation:

can you give brainlest or good review

svetlana [45]3 years ago
6 0

Answer:

Hello!

Let's call X to the number of minutes of long-distance calls you plan to make.

The cost of plan A is given by 25%2B0.05X

The cost of plan B is given by 5%2B0.12X

Plan B is advantageous when its cost is lower than plan A's. Therefore, we set the inequality

5%2B0.12X+%3C+25%2B0.05X

And then solve for X. This will give us the range of minutes for which B is more convenient.

Subtract 5 from both sides of the inequality to get:

0.12X+%3C+20%2B0.05X

Now subtract 0.05X:

0.12X+-+0.05X+%3C+20

0.07X%3C20

Finally, divide by 0.07 to get:

X+%3C+20%2F0.07

X++%3C+285.71

So plan B is advantageous if you plan to use less than 286 minutes of long distance calls.

I hope this helps!

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
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ioda

Answer:

(5,0)

Step-by-step explanation:

"The zero" means the 'x-intercept' of the graphed equation.

That gives you the value of x (first number in the pair) that you substitute in the equation to make it true to get  the value of y  being 0, (the second number in the pair.

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Step-by-step explanation:

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3 years ago
14. In a month-long randomized comparative experiment, participants were
kobusy [5.1K]

Answer: A

Step-by-step explanation:

Confidence interval for the difference in the two proportions is written as

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For the second treatment,

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= 0.3 ± 0.26

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4 0
4 years ago
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