if (4x+5y):(4x-5y) = 19:9, find x:y
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6
Answer :
Now,
( 4x + 5y ) : ( 4x - 5y ) = 19 : 9
⇒ ( 4x + 5y )/( 4x - 5y ) = 19/9
⇒ 9 ( 4x + 5y ) = 19 ( 4x - 5y )
⇒ 36x + 45y = 76x - 95y
⇒ 76x - 36x = 45y + 95y
⇒ 40x = 140y
⇒ x/y = 140/40
⇒ x/y = 7/2
⇒ x : y = 7 : 2
Therefore, x : y = 7 : 2
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Now,
( 4x + 5y ) : ( 4x - 5y ) = 19 : 9
⇒ ( 4x + 5y )/( 4x - 5y ) = 19/9
⇒ 9 ( 4x + 5y ) = 19 ( 4x - 5y )
⇒ 36x + 45y = 76x - 95y
⇒ 76x - 36x = 45y + 95y
⇒ 40x = 140y
⇒ x/y = 140/40
⇒ x/y = 7/2
⇒ x : y = 7 : 2
Therefore, x : y = 7 : 2
#MarkAsBrainliest
Answered by
6
Hello Rumi
The given question is (4x+5y):(4x-5y) = 19:9
or, (4x+5y)/(4x-5y) = 19/9
or,9(4x+5y)=19(4x-5y)
or,36x+45y=76x-95y
or,95y+45y=76x-36x
or,140y=40x
or140/40=x/y
or,7/2=x/y
hope it helps.
The given question is (4x+5y):(4x-5y) = 19:9
or, (4x+5y)/(4x-5y) = 19/9
or,9(4x+5y)=19(4x-5y)
or,36x+45y=76x-95y
or,95y+45y=76x-36x
or,140y=40x
or140/40=x/y
or,7/2=x/y
hope it helps.
KunalVerma911:
Glad it helped
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