Question 607959
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Hi
Sarah has 30 coins consisting of nickels and dimes
Let x and (30-x) represent the original number of nickels and dimes respectively
Question states**Cents makes Sense!
 5x +10(30-x) = 10x +5(30-x) - 40
    300-110 = 10x
         19 = x, the number of nickels, and there are 11 dimes(30-19)
 11·10 + 19·5 = 200cents = $2.05 are what the coins are worth