SOLUTION: Best Buy sells 8 times as many iPods as Sears. The difference between their sales is 490 iPods. How many iPods did each sell? I started with 8x-490=y

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Best Buy sells 8 times as many iPods as Sears. The difference between their sales is 490 iPods. How many iPods did each sell? I started with 8x-490=y      Log On


   

Question 367150: Best Buy sells 8 times as many iPods as Sears. The difference between their sales is 490 iPods. How many iPods did each sell?
I started with 8x-490=y
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, 

*Note, whenever possible, use one variable in the set up

Let x represent number of Sear's iPods, 

then 8x would be the number of the Best Buy iPods

Write as we Read***

8x  -x = 490

7x = 490

x = 70, the number of Sear's iPods sold. Best Buy sells 560 (8*70)

checking our answer

560 - 70 = 490