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3 years ago

14

In a coin collection,the number of dimes is 6 more than twice the number of nickels if the collection has 36 dimes how many nick

els are in the collection

2 answers:

gulaghasi [49]3 years ago

4 0

15 nickels, hope this helps :)

-BARSIC- [3]3 years ago

4 0

15 nickles! i hope thats how you spell nickles lol

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Step-by-step explanation:

Given

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Given that thee variation is inversely proportional;

This implies that

$y\ \alpha\ \frac{1}{x}$

Convert variation to equation

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$7 = \frac{k}{9}$

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Solving for when x = 21

Substitute 21 for x in the above equation

$21 * y = 63$

Divide both sides by 21

$\frac{21 * y}{21} = \frac{63}{21}$

$y = 3$

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