Question

if x:y=3:5 then 10x+3y:5x+2y
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Answer 1

Step-by-step explanation:

x:y=3:5

5x=3y

10x+3y=10x+5x=15x=5x+5x+5x=9y

5x+2y=3y+2y=5y

so simply

9y/5y=9/5

So Ratio=9:5

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Answer 2

Step-by-step explanation:

x/y =3/5

10x+3y : 5x+5y

10(3)+3(5):5(3)+5(5)

= 30+15:15+25

=45:40

=9:8

hope this is answer