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diametriagay
04.12.2020 •
Mathematics
Ben has $5.40 in nickels and dimes. He has 4 times as many dimes as nickels. How many dimes does he have?
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Ответ:
There are 24 dimes
Step-by-step explanation:
we can make an equation and then solve it to find our answer.
n = number of nickles at $0.05 each
4d = number of dimes at $0.10 each
(0.5)n + (0.10)(4n) = 5.40
We now solve this
First, multiply
0.5d+0.4d=5.40
then add
0.9d=5.40
then divide
D=6
Then, multiply by four since there are four times as many dimes
6x4=24
There are 24 dimes
Ответ: