Posted by ash on Tuesday, March 29, 2011 at 12:48am.
A store sells televisions for $360 and video cassette recorders for $270. at the beginning of the week its entire stock is worth $45,990. During the week it sells three quarters of the televisions and one third of the video cassette recorders for a total of $27,630. How many televisions and video cassette recorders did it have in its stock at the beginning of the week?

math i need help plz!  drwls, Tuesday, March 29, 2011 at 1:13am
You need to write two equations in two unknowns, and then solve for them both.
Let x be the original number of TVs and y be the original number of VCRs.
Here is what you know:
360 x + 270 y = 45,990
(3/4)*360 x + (1/3)*270 y = 27,630
which can be simplified to:
270 x + 90 y = 27,630
Tripe the last equation and subtract the first.
810 x + 270 y = 82,890
360 x + 270 y = 45,990
______________________
450 x = 36,900
x = 820
Use any of the original equations to solve for y.

math i need help plz!  Lena, Tuesday, March 29, 2011 at 1:27am
I've been working on this for a while but I cant seem to get anywhere with this. I created this equation.
360(x) + 270 (y) = $ 45,990
360 (3x/4) + 270 (x/3) $27, 630
There's a starting point. If I figure out how to solve this I'll post.
Answer This Question
Related Questions
 math  Marta's weekly pay for selling large screen televisions is determined by ...
 Finite Math  15 An appliance store sells two brands of televisions. Each ...
 math  First week sells 6 chairs for $80 each. Next week, if chair is not sold, ...
 Math  First week sells 6 chairs for $80 each. Next week, if chair is not sold, ...
 Math  First week sells 6 chairs for $80 each. Next week, if chair is not sold, ...
 statistics  suppse you received a shipment of nine televisions. four of the ...
 trig  Karen earns 43 dollars per week working pt at a bookstore. she makes one ...
 i need help math  Ines became the manager of an electronics store. She decided ...
 Math  A video store sells a certain video for $32, which is 60 percent more ...
 Math  An electronics store usually sells 18 remote control devices per week at ...
More Related Questions