Question

find x and y .............​

Answer 1

Answer:

x=3

and

y=4

Step-by-step explanation:

let x=7t

and y=3t

therefore by putting the value in the equation we get,

x×y=21 t^2 + y^2=9 t^2/x^2 =7 t^2 - 3 t^2

=>30 t^2/40 t^2

=>3/4

therefore x:y = 3:4

=>x=3 and y=4..

i hope this is right.....

Answer 2

Answer:

ANSWER = 19

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40

Step-by-step explanation:

X:Y=7:3

SO XY = 7+3=10+Y²

Y²= 3CM ×3CM =9 CM +10 CM =19 CM

X²= 7 CM ×7CM = 49CM - Y²

Y²= 9CM = 49 CM -9CM = 40 CM

SO THE ANSWER IS 19

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40