A woman has $1.70 in dimes and nickels. She has 5 more dimes than nickels. How many nickels does she have?
Answer (2)
d=5+n 0.1(5+n)+0.05n=1.7 0.5+0.15n=1.7 0.15n=1.2 n=8 d=13 therefore 8 nickles and 13 dimes.
The woman has 8 nickels. This is calculated using algebra to set up an equation based on the number of nickels and dimes she has and the total amount of money. She also has 13 dimes in total.
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