Question

please do the sum & explain please ​

Answer 1

Answer:

29 : 49

Step-by-step explanation:

Given x : y = 3 : 5

=> x= 3 , y = 5

3x = 3×3=9

4y = 4×5=20

=>3x + 4y = 29

similarly,

8x = 8×3=24

5y = 5×5=25

=> 24+25 = 49

Therefore : the ratio is 29 : 49

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Answer 2

Step-by-step explanation:

since the value of x and y is given as 3:5.

so put the value after each and every number.

3x+4y:8x+5y

=3×3+4×5:8×3+5×5

=9+20:24+25

=29:49

so the answer will be 29: 49