SOLUTION: The cost of a high-school ring is $145 for the large size and $115 for the regular. The total receipts from the sale of 120 rings was $15,060. How many rings were sold?

Question 483547: The cost of a high-school ring is $145 for the large size and $115 for the regular. The total receipts from the sale of 120 rings was $15,060. How many rings were sold?
Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!
Let x the large size rings
Let y the regular size rings
There were sold 120 rings, then
The total receipts from the sale of 120 rings was $15,060, so
The system of equations

From the first equation
Substitute into the second equation

the large size rings were sold
the regular size rings were sold
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