<PRE><B>Question 150988</B>
at an electronics store they sell about 730 cassette players a year
and about 180 CD players a year. 
If the rate of cassette player sales decreases by 50 each year and the rate of CD player sales increases by 60 each year,
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Cassette Equation: salesC(x)= 730 -50x, where x is the number of years from now.
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CD Equation: salesCD(x)= 180 + 60x, where x is the number of years from now.
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In how many years will the CD player sales be twice as much as the cassette player sales? 
180 + 60x = 2(730-50x)
180 + 60x = 1460 - 100x
160x = 1280
x = 8 years
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Cheers,
Stan H.

use a table to determine you answer. </PRE>