X:y =13:15 and x+y = 84, find the value of x
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x = 39
Step-by-step explanation:
x : y = 13 : 15=> x/y = 13/15
=> x = (13/15)y..........(1)
and
x+y= 84..................(2)
subtituting the value of x from (1) to (2)
(13/15)y +y = 84
=> 13y+15y = 84×15
=> y = 84×15/28 = 45
=> x = 45×13/15= 39
=> x = 39
hope this helps you
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