Answers

  • Brainly User
2016-05-03T09:09:11+08:00
Let:
     5x = amount of meat
     3x = amount of potatoes

Equation:

     5x + 3x = 4 (kg)
     8x = 4
 
     8x       4
   ------ = -----
     8         8
 
     x = 1/2

Substitute the value of x, which is 1/2, to the quantity of meat:
 
    5x   ⇒    5 (1/2) = 5/2  or  2  \frac{1}{2} kgs.

ANSWER:  Mrs. Johnson used 2 \frac{1}{2} kg of meat.

(Mrs. Johnson used 1 \frac{1}{2} kg. of potatoes.)

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