SOLUTION: Earl is ordering supplies. Yellow paper costs $5.00 per ream while white paper costs $7.50 per ream. He would like to order 100 reams total, and has a budget of $550. How many ream

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Earl is ordering supplies. Yellow paper costs $5.00 per ream while white paper costs $7.50 per ream. He would like to order 100 reams total, and has a budget of $550. How many ream      Log On


   

Question 1110697: Earl is ordering supplies. Yellow paper costs $5.00 per ream while white paper costs $7.50 per ream. He would like to order 100 reams total, and has a budget of $550. How many reams of each color should he order?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.500Y%2B750W=55000 <-- Total cost
2.Y%2BW=100 <-- Total number of reams
.
.
Multiply eq. 2 by 500 and subtract from eq. 1,
500Y%2B750W-500Y-500W=55000-50000
250W=5000

Solve for W then use either equation to solve for Y.