Aused car costs $5,000. you figure you can get 2 years out of it. you drive 12,000 miles per year. your car insurance cost $1,500 per year. you figure you will spend $400 per year on maintenance. gas cost $2.50 per gallon, and car gets 20 miles per gallon. what will your average cost per mile after 2 years?

Since the value of the car is not specified after 2 years, we will assume it is zero.

Then the total cost is

... car cost + 2×(insurance cost + maintenance cost + gas cost)

... = 5000 + 2×(1500 + 400 + (12000/20*2.50))

... = 5000 + 2×(1900 + 1500)

... = 11,800

This is the cost for driving 24,000 miles, so the cost per mile is

... 11,800/24,000 ≈ 0.49167

Your average cost per mile will be about $0.49.

The purchase price of the car is about 42% of that cost, so the operating cost is reduced somewhat if there is resale value at the end of 2 years.

answer:

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

explanation:

service only with 20% tip  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the  

service

−−−−−−  

so technically the answer is  

→

$

72.6

(

1

+

20

100

)

=

$

87.12

however, the intention of the question provider may have been that your answer is to be  

$

87.12

(

1

+

8

100

)

=

$

94.09

to 2 decimal places.

'

payment just for service  

→

$

87.12

payment for service including tax

→

$

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge  

.

→

$

72.60

20% tip  

20

100

×

$

72.60

=

$

14.52

−−−−−−  

←

add

$

87.12

tax  

8

100

×

$

87.12

=

$

6.97

−−−−−  

←

add

$

94.09

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