SOLUTION: 25% of my money was spent on books, 5% was spent on snacks and I saved the balance $210.00. what was the total cost for the books and snacks altogether.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: 25% of my money was spent on books, 5% was spent on snacks and I saved the balance $210.00. what was the total cost for the books and snacks altogether.      Log On


   

Question 1026679: 25% of my money was spent on books, 5% was spent on snacks and I saved the balance $210.00. what was the total cost for the books and snacks altogether.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+1+-+.05+-+.25+=+1+-+.3+
+1+-+.3+=+.7+
70% of the money is the balance
Let +s+ = the sum of all the money
+.7s+=+210+
+s+=+300+
+300+-+210+=+90+
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The cost of books and snacks was $90
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check:
+90+%2B+210+=+300+
+.05%2A300+=+15+ for snacks
+.25%2A300=+75+ for books
and
+15+%2B+75+=+90+ for books and snacks
OK