y =
x + 3 → B
subtract 5x from both sides
- 3y = - 5x - 9 ( multiply through by ( - 1 ) )
3y = 5x + 9 ( divide all terms by 3 )
y =
x + 3 ( in slope- intercept form )
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We can set up a proportion.
32/128 = x/100
32 * 100 = 3200
128 * x = 128x.
Now we have 128x = 3200.
All we need to do is divide 3200 by 128, so 3200 / 128 = 25, so your answer is 25%.