Question

0.2x+0.3y=1.2;0.5x+0.7y=2.9​

Answer 1

Answer:

x=3 and y=2

Step-by-step explanation:

0.2x+0.3y=1.2 ....(1)

0.5x+0.7y=2.9 ....(2)

multiplying (1) by 0.5 and (2) by 0.2

0.1x+0.15y=0.60 ...3

0.1x+0.14y=0.58 ...4

solving 3 & 4

we get y=2 and x=3.