.10x+.25y=2.30 (where x is the number of dimes and y is the number of quarters)
y=x+5 (Given in question)
.10x+.25(x+5)=2.30 (substitution)
.10x+.25x+1.25=2.30 (distribution)
.10x+.25x=1.05 (subtractive property of equality)
.35x=1.05 (combine like terms)
x=3 (divide both sides by .35)
Parker has 3 dimes and 8 quarters
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Helen has twice as many dimes as nickels and five more quarters than nickels the value of her coins is 4.75 how many dimes does she have?
Eighteen
More dimes since they are smaller.
160 quarters = $40.00480 dimes = $48.003,999 pennies = $39.99
More than 25.