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Posted by **kIM** on Monday, July 11, 2011 at 12:31am.

How many radios of each type can be constructed if the total number of transistors (P's, Q's and R's) available are 2200, 3400 and 1400 respectively and all transistors must be used?

- MATH- please help! -
**MathMate**, Monday, July 11, 2011 at 4:29pmSorry about the confusion, which is not helped with at least 6 copies of identical questions, in addition to others that may have been deleted.

http://www.jiskha.com/display.cgi?id=1310358660

http://www.jiskha.com/display.cgi?id=1310104811

http://www.jiskha.com/display.cgi?id=1310104728

http://www.jiskha.com/display.cgi?id=1310355002

http://www.jiskha.com/display.cgi?id=1310104839

http://www.jiskha.com/display.cgi?id=1310413630

It would be much easier to respond to the original post, or make a new post with reference to the old post by number or by date and time.

Let

D=number of deluxe units

S=number of standard units

E=number of economy units

Set up equations for each type of transistor, forcing the total number used to the quantity available:

For type P:

2D+2S+E=2200

For type Q:

7D+3S+2E=3400

For type R:

D+S+2E=1400

Solving the above three simultaneous equations will give the quantities required. I get a total of 1200 units.

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