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uysha [10]
2 years ago
14

The telephone company offers two billing plans for local calls. Plan 1 charges ​$27 per month for unlimited calls and Plan 2 cha

rges ​$11 per month plus ​$0.05 per call. A. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2.
Mathematics
1 answer:
mylen [45]2 years ago
3 0

Answer:

<h2>0.05x+11<27 for x<=320</h2>

Step-by-step explanation:

Step one:

Plan 1

charges = $27 monthly

the total charges is expressed as

y=27------1

Plan 2

charges= $11 monthly

extral= $0.05 per call

let x be the number of calls

the total is expressed linearly as

y=0.05x+11--------2

Step two:

equating 12 and 2 we have

27=0.05x+11

collect like terms

27-11=0.05x

16=0.05x

divide both sides by 0.05

x=16/0.05

x=320

the inequality for which plan A is more economical is

0.05x+11<27 for x<=320

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Answer:

8.6%

Step-by-step explanation:

To find the percent change, you will need to compute the positive difference and then divide the difference by the original (the older amount).

So the positive difference will be obtain by doing larger minus smaller:

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The older amount was 5800.

So 500/5800 is the answer as a un-reduced fraction.

I'm going to reduce it by dividing top and bottom by 100:

500/5800  = 5/58

5/58 is the answer as a reduced fraction.

5 divided by 58 gives=0.086206897  in the calculator .

Approximately 0.0862 is the answer as a decimal.

To convert this to a percentage, multiply it by a 100:

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Rounded to the nearest tenths is 8.6%

-------------

So 5800+5800(.0862) should be pretty close to 6300 (not exactly though since we rounded).

5800+5800(.0862)=6299.96 using the calculator.

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3 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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