SOLUTION: Ann has $3.20 in 10 cents coins and 25 cents coins. If she has twenty coins
altogether, find how many of each type of coin she has.
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Question 1176731: Ann has $3.20 in 10 cents coins and 25 cents coins. If she has twenty coins
altogether, find how many of each type of coin she has.
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
let cents coins be and cents coins
if she has twenty coins altogether, we have
....eq.1
=$
=$
if Ann has $, then
.....substitute from eq.1
...both sides multiply by to get rid of decimals
go to eq.1
....eq.1, substitute
so Ann has of cents coins and of cents coins
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