Math, asked by shyamgudela, 1 year ago

0.2x+0.3y=1.3
0.4x+0.5y=2.3
solve by substitution method

Answers

Answered by vamritaeunameun
17

Answer:

x=2;y=3

Step-by-step explanation:


0.2x+0.3y=1.3

(0.2x+0.3y)×10=1.3×10

2x+3y=13 ---[1]

0.4x+0.5y=2.3

(0.4x+0.5y)5=2.3×5

2x+2.5y=11.5 ---[2]

Eq. [1]-[2]

2x+3y-2x-2.5y=13-11.5

0.5y=1.5

5y=15

y=3

x=(13-3y)/2=(13-3×3)/2=2


i hope it helps.


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