Mathematics
Marge257
21

I need help again this is really hard and I don't understand how to do it

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(2) Answers
oyara1

C=10 & P=5 3C+4P=50 C+P=15 Solve 3C+4P=50 3C+3P=45 Subtract P=5 Substitute in equation 2 C+P=15 C+5=15 C=10

Winkey180

use algebra Set up a system of equations. Let x = number of pounds of chicken he sold  and y = number of pounds of pork  So one equation is  x + y = 15....... (1) And the other equation is the amount of money he made :- 3x + 4y = 50....(2) Now solve this sytem of 2 equations:- multiply the eqaution (1) by -3:- -3x - 3y = -45 .......(3) 3x  + 4y = 50 ........(2)   Now add (3) and (2);- y = 5      so he sold 5 pounds of pork  and substituting in equation (1) x + 5 = 15  x = 10  So he sold 5 pounds of pork and 10 pounsd of chicken.

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