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MArishka [77]
3 years ago
10

Heeeeelp!!!!!!

Mathematics
2 answers:
nydimaria [60]3 years ago
7 0

Answer:

29 nickels, 12 dimes

If the number of nickels is 7 less than three times the number of dimes, the answers should be 29 nickels and 12 dimes. Hope it helps!

madam [21]3 years ago
5 0

Answer:

<h2>dimes = $2.41</h2><h2>nickels = $0.24</h2><h2></h2>

Step-by-step explanation:

given:

A piggy bank contains $2.65 in nickels and dimes.

If the number of nickels is 7 less than three times the number of dimes,

find:

how many of each kind of coin are there?

solution;

total = $2.65 = d + n

let d = dimes

    n = nickels

nickels = 3d - 7

plugin values into the formula:

2.65 = d + 3d - 7

2.65 + 7 = 4d

d =<u> 9.65 </u>

        4

d = $2.41

nickels = 3d - 7

            = 3(2.41) - 7

         n = $0.24

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