2 answers:
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!
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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