Marty has a piggy bank that contains $2.25. The piggy bank contains only quarters and dimes. There are twice as many dimes as quarters in the bank.How many dimes are in the piggy bank?

Question

anonymous · Answer

I needed to know how many dimes not quarters:(

anonymous · Answer

paige!!!!!!! i gave u the solution

anonymous · Answer

What that the dimes are two and the quarters are five?

anonymous · Answer

Please just help me?

parthkohli · Answer

Dime is 10 cents

anonymous · Answer

Ohh so the answer is ten?

anonymous · Answer

or one dime?

parthkohli · Answer

20x + 25x = 225
45x = 225
x = 225/45
x= 5
there were 2x dimes = 10 dimes and x quarters = 5 

MARTY HAD 10 DIMES AND 5 QUARTERS in his piggy bank

anonymous · Answer

ok...

parthkohli · Answer

So, he had 10*10 = 100 cents + 25 * 5 = 125 cents. That makes 2.25 dollars. We have proved the answer.