140% of what number is 39?
Provide an exact fraction answer.

27.86 or 27 wholes 6/7

Step-by-step explanation:

Let the number be x

140% of x = 39

140x/100 = 39

140x = 3900

x= 3900/140

x = 27  wholes 6/7 or 27.86

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10