Question

0.6x+0.5y=5,0.8x+0.1y=4.4

Answer 1

Explanation:

0.6x+0.5y=5

0.6x=5—0.5y

x={5—0.5y} /0.6—{eq.1}

0.8x+0.1y=4.4

0.8×[{5—0.5y}/0.6] +0.1y=4.4—{from eq.1

[{4—0.4y}/0.6]+0.1y=4.4

{4—0.4y+0.06y}/0.6=4.4

". =4.4×0.6

". =2.64

4—0.34y =2.64.

y=4. (on solving)

Now putting this value in eq.1

X={5—0.5y}/0.6

X ={5—(0.5×4)}/0.6

X=5 (on solving)