2 years ago

Mary wants to join a gym.

Mathematics

1 answer:

Leya [2.2K]2 years ago

5 0

Answer:

It would take five months for the total cost of the gyms to be equal.

Step-by-step explanation:

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Step-by-step explanation:

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Patty has 44 coins, all nickels, dimes and quarters, worth a total of $6.45. She has 3 times as many dimes as nickels. Set up an

kherson [118]

Answer: There are 7 nickles, 21 dimes and 16 quarters.

Step-by-step explanation:

Since we have given that

Number of coins = 44

Let the number of nickels be 'x'.

Let the number of dimes be '3x'.

Let the number of quarters be

$44-(x+3x)\\\\=44-4x$

According to question, we get

$0.05x+0.10(3x)+0.25(44-4x)=6.45\\\\0.05x+0.3x+11-x=6.45\\\\-0.65x=6.45-11\\\\-0.65x=-4.55\\\\x=\dfrac{4.55}{0.65}\\\\x=7$

So, there are 7 nickles,

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Hence, there are 7 nickles, 21 dimes and 16 quarters.

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4 years ago