what is the value of 3x + 4y when x = 2⅓ and 4¾ please ans me fastly it's urgent
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If 3x+4y:x+2y=9:4,then 3x+5y:3x−y is equal to
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ANSWER
x+2y
3x+4y
=
4
9
9x+18y=12x+16y
2y=3x
y=
2
3
x
We have to find ratio of
3x−y
3x+5y
=
4
9
Putting y=
2
3
x in it
3x−
2
3
x
3x+
2
15
x
=
2
3
x
2
21
x
=
1
7
=7:1
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