C) Find the value of y if x = 27 from the given equation (4x + 3y): (3x + 5y) = 6:7.
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Answer:
y=30
Step-by-step explanation:
putting value of x in giving equation
(4 (27)+3y)/(3 (27)+5y)=6/7
(108+21y)/(81+5y)=6/7
cross multiply
7 (108+21y)=6 (81+5y)
756+21y=486+30y
30y-21y=756_486
9y=270
y=270/9
y=30
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