Question

2. If x: y = 8:9, find the ratio (7x - 4y): 3x + 2y.
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Answer 1

Step-by-step explanation:

(7x-4y)/3x+2y=8/9

72x-32y=24x+16y

Answer 2

Answer:

Let x be 8k

& y be 9k

NOW,

(7x-4y)=(7×8k-4×9k)

=(56k-36k)

=20k

(3x+2y)=(3×8k-2×9k)

=(24k-18k)

=6k

NOW,

(7x-4y):(3x+2y)

=20k:6k

=10:3