Question

A fabric cotton and synthetic fibres are in the ratio 2 :3 by weight. If the weight of the cotton fibres is 30 grams. Express this statement as a linear equation in two variables a. 3x-2y =0 b. 3x+2y =0 c. 2x-3y = 0 d. 3x-2y = 30​

Answer 1

Answer:

fabric cotton(fc) + synthetic fibres(sf) = 30 grams

fc=2x

sf=3x

::2x + 3x = 30

5x = 30

x = 6

hence fc = 12g

sf = 18g