Problema Solution
use the five steps for problem solving to answer the question
Laura found $2.15 in quarters and nickles in the bottom of her purse. There were seven fewer quarters than nickels. How many nickels and quarters did she find?
Answer provided by our tutors
total money = $2.15 = 215 cents
Suppose there are x quarters and y nickels
we get 25x + 5y = 215
and x = y - 7
solving the two equation we get
x = 6, y = 13
quarters = 6 and nickels = 13