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Evgen [1.6K]
3 years ago
6

the cost of a parking permit consists of a one-time administration fee plus a monthly fee. a permit purchased for 12 months cost

s $660. a permit purchased for 15 months costs $810. what is the administration fee?
Mathematics
1 answer:
weqwewe [10]3 years ago
4 0
The cost of a parking permit consists of a one-time administration fee plus a monthly fee.
=> a permit purchased for 12 months costs $660.
=> a permit purchased <span>for 15 months costs $810. 
let's determine  the administration fee.
=> 810 - 660 dolalrs = 150 dollars is added for additional 3 months.
=> 150 / 3 months = 50 pesos per month.
=> 50 * 12  = 600 dollars.
=> 660 dollars - 600 dollars = 60 dollars is the administration fee.</span>
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Answer:

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In the diagram below we have

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\frac{BE+EC}{BE}=\frac{4}{1}         ( BC= BE+EC)

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