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Evgen [1.6K]
3 years ago
12

Please help me with homework

Mathematics
1 answer:
Ksivusya [100]3 years ago
7 0

Answer:

1.) 5/4

2.) -4/5

3.) 1/4

4.) -1

5.) 1

Step-by-step explanation:

<u>Brainliest Please</u>

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A phone company offers two monthly plans. Plan A costs $25 plus an additional $0.09 for each minute of calls. Plan B has no init
Lisa [10]

Using linear functions, it is found that the two plans cost the same for 5000 minutes of calling.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

For Plan A, the cost is of $25 plus an additional $0.09 for each minute of calls, hence the y-intercept is b = 25, the slope is of a = 0.09, and the function is:

A(x) = 0.09x + 25

For Plan B, the cost is of $0.14 for each minute of calls, hence the y-intercept is b = 0, the slope is of a = 0.14, and the function is:

B(x) = 0.14x

The plans cost the same for x minutes of calling, considering that:

B(x) = A(x)

0.14x = 0.09x + 25

0.05x = 250

x = \frac{250}{0.05}

x = 5000

The two plans cost the same for 5000 minutes of calling.

To learn more about linear functions, you can take a look at brainly.com/question/24808124

6 0
2 years ago
Given f(x) = -3x + 3, solve for x when f(x) = 9.
Virty [35]

Answer:

x = -2

Step-by-step explanation:

f(x) = -3x + 3

f(x) = 9

-3x + 3 = 9

Subtract 3 from both sides;

-3x = 6

Divide both sides by -3

x = -2

6 0
3 years ago
Read 2 more answers
What division problem can be represented using the number line?
kow [346]

Answer: The Answer is A

Step-by-step explanation:

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2 years ago
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PLEASE PLEASE PLEASE I ALMOST DONE AND I NEED THIS QUESTION
sukhopar [10]

Answer:

107

Step-by-step explanation:

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3 years ago
Calculate (a) the total installment price, (b) the carrying charges, and (c) the number of months needed to save the money at th
Paraphin [41]
8.50 + 11 (24) = 272.50 
The total price 
Carrying charges 72.50 

<span>divide $11 into 200</span>
6 0
3 years ago
Read 2 more answers
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