Question

If 70% of (x - y) = 50% of (x + y), then what per cent of x is y? Free points.​

Answer 1

Answer:

According to question,

70% of (x–y) =50% of (x+y)

⇨70/100 ×(x–y) =50/100 ×(x+y)

⇨7/10 ×(x-y) =1/2 ×(x+y)

⇨10(x+y)=14(x-y)

⇨10x+10y=14x–14y

⇨10y+14y=14x–10x

⇨24y=4x

⇨y=x/6

⇨y=x/6 ×100%

⇨y=(50/3%)×x

Therefore, y is 50/3 percentage of x.

Answer 2

Answer:

Step-by-step explanation:

70% of (x - y) = 50% of (x + y)

(x-y)*70/100=50*(x+y)/100

7x-7y=5x+5y

7x-5x=5y+7y

2x=12y

y=x/6

=100*x/6/x

=100/6=50/3=16.66%