Question

if x:y =1:2 find the value of (2x+3y):(x+4y)
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Answer 1

Step-by-step explanation:

x:y=1:2 means

y

x

=

2

1

Now, (2x+3y):(x+4y)=

(x+4y)

(2x+3y)

=

y

x+4y

y

2x+3y

=

y

x

+4

2

y

x

+3

Putting

y

x

=12, we get,

=

2

1

+4

2⋅

2

1

+3

=

9

8

Thus, the required ratio is 8:9

Answer 2

Answer:

1.2571

Step-by-step explanation:

because the x square is less than a+b