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eimsori [14]
3 years ago
14

An overseas telephone company charges $4 for the first minute of talking and then $0.25 for each additional minute. If a woman s

pent $13.75 talking on the phone, how many minutes did she talk for?
Mathematics
1 answer:
Hoochie [10]3 years ago
6 0

Answer:

<h2>39 minutes</h2>

Step-by-step explanation:

In this problem we can see that there is a constant/flat rate charge of $4 on every first minute

we can model the cost for calls as

y= 4+0.25x------1

where x is the number of extra minutes spent

given that y = $13.75

We can simply substitute our given values into the equation 1 above and solve for x

13.75= 4+0.25x\\\\13.75-4= 0.25x\\\\9.75=0.25x

Divide both sides by 0.25 to find x

x= 9.75/0.25\\\\x=39

You might be interested in
A coin is flipped 50 times and it lands on heads 18 times. What is the experimental probability of landing on tails?
TEA [102]

Answer:

16/25

Step-by-step explanation:

because 50-18=32 we can see that in the given answers the 50 is not given is given the half of 50 so the half of 32 is 16.

hope it helps.

3 0
3 years ago
What is 200x20, and what is 15x30?
aleksandrvk [35]

Answer:

200×20 = 4000 And 15×30 = 450

Step-by-step explanation:

Hope it helpz!!

5 0
3 years ago
Moxie wants to have $5000. how much money does she have to deposit in an account at 6% interest, compounded 3 times per year, in
BaLLatris [955]
<span>Moxie wants to have $5000. how much money does she have to deposit in an account at 6% interest, compounded 3 times per year, in order to have $5000 at the end of 6 years?  The formula for compound interest AMOUNT is

A = P (1 + r/n)^(nt), 

where P is the principal and must be calculated here; A is the amount Moxie wants to have after 6 years, and is $5000; r is the annual interest rate, expressed as a decimal fraction:  0.06; n is the number of compounding periods per year, which here is 3; and t is the time, in years, here equal to 6.

Solve the following for P:  $5000 = P (1 + 0.06/3)^(3*6)

Hint:  $5000 = P (1.02)^18

</span>
4 0
4 years ago
For the following exercises, find the x- and y-intercepts of the graphs of each function.
jok3333 [9.3K]

The x- and y-intercepts of the graphs of the function described are; (2,0) and (4,0) respectively.

<h3>What are the x- and y-intercepts of the graph of the function?</h3>

It follows from the task content that the function given is; f(x) = −2| x +1 | + 6.

Since the x- and y-intercepts corresponds to x and y values for which y and x are zero respectively, it follows that;

x -intercept is;

0 = -2(x+1) + 6

2x = -2 +6

2x = 4

x = 4/2 = 2

y-intercept is;

y = -2(0+1) +6

y = 4.

Read more on y-intercept;

brainly.com/question/10700419

#SPJ1

6 0
2 years ago
I need help with this question
raketka [301]
I think associative, because it is the same thing in a different order. 
4 0
3 years ago
Read 2 more answers
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