If the annual income of A and B are in the ratio 3:4 and their expenditure are in the ratio 5:7, if each Save rupees 5 000 find their annual incomes use linear equations with two variables
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Answers
Answered by
1
A=30000
B=50000
hope it may help u
B=50000
hope it may help u
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Ys , but ,30,000 and 40,000?
oo sry it was 4x i thought it ...it was 5x that's why
ok
hmmm
Answered by
5
income -expenditure =savings
income of A =3x
income of B=4x
expenditure of A=5y
expenditure of B =7y
savings of A and B =5000
3x-5y =5000—————1
4x-7y =5000——————2
from equation 1 and 2
12x-20y=20000
12x-21y=15000
—————————
y. = 5000
—————————
y=5000
substitute in equation 1
3x-5y =5000
3x-5(5000)=5000
3x-25000 =5000
3x=30000
x=10000
annual income of A =3x
=3(10000)
=30000
ANNUAL INCOME OF B =4(10000)
=40000
PLZ MARK ME AS A BRAINLIST
income of A =3x
income of B=4x
expenditure of A=5y
expenditure of B =7y
savings of A and B =5000
3x-5y =5000—————1
4x-7y =5000——————2
from equation 1 and 2
12x-20y=20000
12x-21y=15000
—————————
y. = 5000
—————————
y=5000
substitute in equation 1
3x-5y =5000
3x-5(5000)=5000
3x-25000 =5000
3x=30000
x=10000
annual income of A =3x
=3(10000)
=30000
ANNUAL INCOME OF B =4(10000)
=40000
PLZ MARK ME AS A BRAINLIST
you're already .
thx
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