Jessica has some dimes and quarters, for a total of 16 coins

[santasad13]

Jessica has some dimes and quarters, for a total of 16 coins. Whitney has 2 times as many dimes and 1/3 as many quarters as does Jessica. If they both have the same amount of money, what coins does each have?

i cant figure out how to set it up. i know that they are equal, but that is it.

 

[stapel]

A good place to start would be to pick variables. What are your unknowns? What variables have you picked for them? Then use those variables to create equations. You say "they are equal", but what is "they"? And so forth.

Thank you.

Eliz.

 

[Denis]

j = jessica's dimes

.10j + .25(16 - j) = .10(2j) + .25((16 - j) / 3)