There is same number of pennies, nickels, and dimes in a wallet. Together they make $1.28. How many coins are there in the walle

Question

Jlenok [28]

3 years ago

11

There is same number of pennies, nickels, and dimes in a wallet. Together they make $1.28. How many coins are there in the walle

t?

Mathematics

2 answers:

Anarel [89] · Answer 1 · 2022-07-15T05:48:35+03:00

Anarel [89]3 years ago

7 0

A = amount

.01a + .05a + .1a = 1.28
Combine like terms.
.16a = 1.28
Divide both sides by .16.
a = 8

8 * 3 = 24

There are 24 coins in the wallet.

Fofino [41] · Answer 2 · 2022-07-15T07:52:12+03:00

Fofino [41]3 years ago

4 0

We call the number of each kind of coins: a
We have the total money is a+ 5a+ 10a= 16a
We have an equation 16a= $1.28 or 16a=128
and we have a= 8
And there are 8x3=24 coins
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