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koban [17]
1 year ago
7

A phone company charges $.25 for the first minute of a long distance call and $.07 for each addition minute. write an equation t

hat gives the cost C of a long distance call as a function of the length t (in minutes) of the call. find the duration of a long distance cap that costs $2
Mathematics
1 answer:
Mamont248 [21]1 year ago
6 0

The cost C of a long distance call as a function of the length t is C(t) = 0.25 + 0.07t and the number of minutes is 25 minutes

<h3>What are linear equations?</h3>

Linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient

<h3>How to determine the solution to the system?</h3>

A system of linear equations is a collection of at least two linear equations.

In this case, the given parameters are:

Charge for first minute = $.25

Rate for additional minute = $.07 per minute

Let the number of minutes be t and the total cost be C(t)

So, we have:

C(t) = Charge for first minute + Rate for additional minute * x

This gives

C(t) = 0.25 + 0.07t

When the total cost is $2, the equation becomes

0.25 + 0.07t = 2

Subtract 0.25 from both sides

0.07t = 1.75

Divide both sides by 0.07

t = 1.75/0.07

Evaluate the quotient

t = 25

Hence, the number of minutes is 25 minutes

Read more about linear equations at:

brainly.com/question/14323743

#SPJ1

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6 0
3 years ago
What is the solution to y=5x+1 and y=-5x+15?
Semenov [28]

Answer:

x=7/5, y=8

Step-by-step explanation:

You can use substitution.

7 0
3 years ago
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Select all that are true for g(x) = 10/x (PLEASE ANSWER FAST ILL LOVE YOU FOREVER)
Ksivusya [100]
The given function is:

g(x)= \frac{10}{x}

The parents functions of g(x) will be:

f(x)= \frac{1}{x}

The domain of g(x) and its parent function is the same i.e. Set of all Real numbers except 0.

The range of g(x) and its parent function is the same i.e. set of all real numbers except 0. 

g(x) and its parent function only decrease. They do not increase over any interval. However, the interval in which they decrease is the same for both.

So, the correct answers are:
The domain of g(x) is the same as the domain of the parent function.
<span>The range is the same as the range of the parent function.
</span><span>The function g(x) decreases over the same x-values as the parent function.</span>
8 0
3 years ago
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The temperature was 6 degrees at midday.
Georgia [21]

Answer:

2 & 3

Step-by-step explanation:

they both equal -7

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2 years ago
How does the graph of g(x) = (x - 3)^3 + 4 compare to the parent function f(x)=x^3 ?​
masha68 [24]

Answer:

f(x) has moved:

4 units in the positive y direction i.e upwards

3 units in the positive x direction

Step-by-step explanation:

to get g(x), f(x) has undergone the following transformations

f(x) = x³

f1(x) = x³ + 4      (translation of 4 units in the positive y direction i.e upwards)

f2(x) = g(x)  = (x-3)³ + 4 (translation of 3 units in the positive x direction i.e towards the right)

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