SOLUTION: This is a system if equations word problem.
"Laura has $4.50 in dimes and quarters. She has 3 more dimes than quarters. How many quarters does she have?"
I've tried this prob
Question 833413: This is a system if equations word problem.
"Laura has $4.50 in dimes and quarters. She has 3 more dimes than quarters. How many quarters does she have?"
I've tried this problem for over an hour and I just can't seem to get it. Thanks to anyone who can help! Could you please explain how you got the answer as well? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Convert dollar to cents
She has cents
Let = the number of dimes she has
Let = the number of quarters she has
-------------------
(1)
(2)
-----------------------
(1)
Multiply both sides of (1) by
and add (1) and (2)
(2)
(1)
and, since
(1)
(1)
(1)
She has 15 dimes and 12 quarters
check:
(2)
(2)
(2)
(2)
OK
