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3 years ago

A phone company charges for service according to the formula: C(n) = 13 +0.07%, where n is the number of minutes

Mathematics

1 answer:

irina1246 [14]3 years ago

6 0

Answer:

0.07

dollar per minute

Step-by-step explanation:

Given the charging formula :

C(n) = 13 +0.07n

n = number of minutes talked, and

C(n) = monthly charge, in dollars

The slope is the change in amount charged per change in the number of minutes talked.

Also, from The slope intercept equation :

y = mx + c

Comparing the equation :

0.07n = mx

m = 0.07

Since, The slope is the change in amount charged per change in the number of minutes talked.

Amount charged in dollars, talk time measured in minutes ;

Unit = dollar per minute

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A person places $308 in an investment account earning an annual rate of 2.1%,

MAVERICK [17]

Answer: 449.48

Step-by-step explanation:

8 0

3 years ago

Rewrite the function by completing the square.<br> f(x) = x2 – 10x + 44<br> +<br> f(x) = (x+

iVinArrow [24]

Answer:

$f(x)=(x-5)^{2}+19$

Step-by-step explanation:

we have

$f(x)=x^{2}-10x+44$

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)-44=x^{2}-10x$

Complete the square. Remember to balance the equation by adding the same constants to each side.

$f(x)-44+25=x^{2}-10x+25$

$f(x)-19=x^{2}-10x+25$

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$f(x)-19=(x-5)^{2}$

$f(x)=(x-5)^{2}+19$

8 0

4 years ago

The population of a small town was 10,800 in 2003. Since then, the population has

nordsb [41]

Answer: 5940

Step-by-step explanation: I don't know if it's for sure right but here

First I knew 10,800 was 100% and I wanted to find 2.5%

So I did:

10,800 divided by 100 and I got 108 = 1%

Than you want to do

108 x 2.5 = 270 ( 2.5% )

After that you wanted to find out how much years apart so

2021 - 2003 = 18

Then

18 x 270 = 4,860

Last of all you have to do

10,800 - 4,860 = 5940

8 0

3 years ago

Jennifer is making a cold cut platter using turkey and ham for an event that she is catering. She uses 90 slices of meat. If 63

statuscvo [17]

Answer:

27 slices of ham which is about 30% of the meat.

Step-by-step explanation:

In this problem we have given

no. of slices of meat=90

no of slices of turkey's meat=63

Percent of ham in platter=?

No of ham slices= Total slices -turkey slices

=90 - 63

= 27 slices

therefore no of ham slices=27

percent of ham slices=Ham slicesx100/total slices

=27x100/90%

=30%

Therefore percent of ham's in patter=30%

6 0

4 years ago

Read 2 more answers

Determine the value of the ?

goblinko [34]

Answer:

$x^{2} y^{3}$

Step-by-step explanation:

Using the Quotient rule:

$\frac{a^{m}}{a^{n}} = a^{m - n}$

We can subtract the exponents of x and y:

$\frac{x^{6} y^{10}}{x^{4} y^{7}} = x^{(6 - 4)} y^{(10 - 7)}$

Therefore, $\frac{x^{6} y^{10}}{x^{4} y^{7}} = x^{2} y^{3}$

Please mark my answers as the Brainliest if you find this explanation helpful :)

5 0

2 years ago