Question

Sang-Jin has only quarters and nickels in her piggy bank. She has 66 coins in the bank with a value of $11.50.

How many quarters are in Sang-Jin’s piggy bank?

Answer 1

AGHHHHHHHH.
Sorry, this took so long... hehe but, I got your answer, through lots of trial and error. Thanks for being patient with me :)

So, I can't explain it in numbers, because you would be reading this for another 10 minutes, becoming more and more confused. In the end, I got 41 quarters, and 25 nickels. I REALLY hope this helps. Lemme know if you need another one done. :)

Answer 2

If you had 46 quarters, you would get $11.50, so you know there is less than that because you need 66 total coins. If you had 41 quarters, you would have $10.25. That would mean you need 25 nickles. 41x.25=10.25 25x.05=1.25 10.25+1.25=11.50. So your answer would be 41 quarters are in the bank.