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vaieri [72.5K]
3 years ago
10

A​ long-distance telephone company charges a rate of cents per minute or a ​-cent minimum charge per completed​ call, whichever

is greater. Find the​ cost, in cents per​ minute, for a ​-minute call.
Mathematics
1 answer:
LiRa [457]3 years ago
8 0

Answer: 50 cents

Step-by-step explanation:

Company charges 8 cents per call and the call in question is 3 minutes. Cost is;

= 3 * 8

= 24 cents

Company however stipulates that a call is 8 cents per minute or a 50​-cent minimum charge per completed​ call, whichever is greater.

<em>50 cents is greater than the per minute total charge of 24 cents so the cost will be 50 cents.</em>

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The furniture store sells dining room tables and chairs. single chairs for particular table sell for 75.00 each. the cost for fo
d1i1m1o1n [39]

Answer:

B, 33%

Step-by-step explanation:

Let us find the original price of four chairs without the special deal, and <u>compare</u> it with the deal to find the percent savings.

Step 1:

A customer must buy 4 chairs costing $75 each to recieve the deal. Let us <u>multiply</u> 4 by 75 to find the total cost without the deal:

4*75=\\300

Step 2:

We now know the original cost of the 4 chairs, and the price of 4 chairs with a deal. Let us <u>subtract the difference of costs</u> and convert it into a <u>percentage</u> to find percent savings:

300-200=100\\\frac{100}{300} =\frac{1}{3}

\frac{1}{3}=33%

<u>Therefore, B, the percent savings is 33%.</u>

<em>I hope this helps! Let me know if you have any questions :)</em>

3 0
3 years ago
Congress regulates corporate fuel economy and sets an annual gas mileage for cars. A company with a large fleet of cars hopes to
Dimas [21]

Answer:

The calculated value t= 3,947 >  2.0301 at 0.05 level of significance ( two tailed test) with 35 degrees of freedom.

Null hypothesis is rejected

There is no strong evidence that they have attained their fuel economy​ goal.

Step-by-step explanation:

<u>Step (i):</u>-

A company with a large fleet of cars hopes to meet the goal of 38.2 mpg or better for their fleet of cars.

Population mean 'μ' = 38.2mpg

Given the gasoline usage for 36 company trips chosen at​ random, finding a mean of 40.20 mpg and a standard deviation of 3.04 mpg.

Sample size 'n' = 36

mean  of the Sample 'x⁻' = 40.20mpg

standard deviation of the Sample 'S' = 3.04 mpg.

<u>Step(ii)</u>:-

Null hypothesis: H₀: 'μ' = 38.2mpg

Alternative hypothesis: H₁: 'μ' ≠ 38.2mpg

Level of significance ∝=0.05

The test of hypothesis

                             t = \frac{x^{-} - mean}{\frac{S}{\sqrt{n} } }

                            t = \frac{40.20- 38.20}{\frac{3.04}{\sqrt{36} } } = 3.947

The degrees of freedom ν= n-1 = 36-1 =35

The tabulated value t₀.₀₅ =  2.0301 at 0.05 level of significance ( two tailed test) with 35 degrees of freedom.

The calculated value t= 3,947 >  2.0301 at 0.05 level of significance ( two tailed test) with 35 degrees of freedom.

Null hypothesis is rejected

<u>Conclusion:</u>-

There is no strong evidence that they have attained their fuel economy​ goal.

4 0
3 years ago
13 to the 2nd power =169. what would be the inverse to undo it?​
tatiyna

Answer:

The inverse is \sqrt{169}

Step-by-step explanation:

8 0
3 years ago
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Catherine finds that in a randomly selected sample of 500 families in her home town, 45% own at least one computer. Her research
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I think the answer is 4.
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3 years ago
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Cristina has completed .4 of his test. The test has 40 questions total. if he completes 12 more how many more will he have left?
katrin [286]

4 + 12 = 16

40 - 16

24

6 0
3 years ago
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