n a jar of coins, the ratio of nickels to dimes is 5:7. If the jar contains 350 dimes, how many nickels are there?

Question

n a jar of coins, the ratio of nickels to dimes is 5:7. If the jar contains 350 dimes, how many nickels are there?

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Sarah 2 weeks 2021-09-08T17:38:22+00:00 1 Answer 0

Answers ( )

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    2021-09-08T17:40:14+00:00

    Answer:

    250 nickles

    Step-by-step explanation:

    Nickles and dimes are coins with different currency values. One nickel(N) is equal to 5 cents while one dime(D) is equal to 10 cents. The ratio of nickel:dime is 5:7, to put into the equation it will be:

    N/D= 5/7

    7N=5D   —> 1st equation

    There are 350 dimes, the equation will be:

    D=350   —-> 2nd equation

    We can find out the number of nickels by substitute the 2nd equation into the first. The calculation will be

    7N=5D

    N= 5D/7

    N=5(350)/7

    N=  250

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45:7+7-4:2-5:5*4+35:2 =? ( )