I have to solve a coin word problem using a method called HES (Heading, Equation, Solution). In the problem, there are 3 unknowns and we have to have 2 equations so that we can either use substitution or elimination.
I have to let x=?(something)
2x=?(something)
y=? (something)
The word problems is as follows:
Jamie has $3 in nickels, dimes, and quarters. If she has twice as many dimes as quarters and five more nickels than dimes, how many coins of each type does she have?
