A Sum of $14 is made of 92 coins consisting of dimes and quarters. How Many are there of each kind of coin
Question
Answer:
So first I would say, what if all of them were dimes, how far away would it be from $14?So 92 coins * 10 cents = $9.20
So it's 4.80 dollars away from 14 dollars.
So if we were to switch one to a quarter, it would increase by 0.15 cents.
So we want to see how many increases we need to reach 4.80 dollars more.
4.80/0.15 = 32
So there are 32 quarters and 60 dimes.
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