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Vadim26 [7]
2 years ago
12

Olivia is going to an amusement park. The price of admission into the park is $40, and once she is inside the park, she will hav

e to pay $4 for every ride she rides on. How much money would Olivia have to pay in total if she goes on 13 rides? How much would she have to pay if she goes on r rides?
Mathematics
1 answer:
lina2011 [118]2 years ago
4 0
She’ll pay 4$ per ride so we can write that as 4r. The entrance fee is 40 so we can write this as 40+4r. If she goes on 13 rides then 40+4(13)= 40+52=92.
***Olivia would pay 92$ in total if she goes on 13 rides

If she goes on r rides she would have to pay t=40+4r***
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<span>Compound  interest  formula</span>

A=P(1+ \frac{r}{n} )^{nt}

 

Where

<span>
A= Future value
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<span>n= number of times compounded in one t






Remark
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r is generally a percentage like 3%, 7% etc and are applied in the formula as 0.03, 0.07..., 

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t is in years,


In our problem:

</span>

A= 30 000

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n= 4

applying the formula:

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