Question

if x:y=3:4,then 4x+5y : 5x-2y=?​

Answer 1

Answer:

32:7

Step-by-step explanation:

Suppose x=3k and y = 4k.

k is non zero quantity

4x+5y :5x-2y = (4×3k + 5×4k):(5×3k-2×4k)

= 32k:7k

=32:7

Answer 2

Answer:

$according \: to \: question \\ x = 3 \: and \: y = 4 \\ putting \: the \: values \: in \: 4x +5y : 5x - 2y \\ = 4 \times 3 + 5 \times 4 : 5 \times 3 - 2 \times 4 \\ = 12 + 20 : 15 - 8 \\ = 32 : 7 \\ hope \: it \: helps$