7 is what percent of 90
Let us put it as an equation
7 = x% * 90
Is means = and of means times
You must change x% to normal value by divide x by 100
[tex]7=\frac{x}{100}\times90[/tex]
Now we will solve the equation
Multiply both sides by 100 to cancel the denominator in the right side
[tex]7\times100=\text{ x}\times90[/tex][tex]700\text{ = 90 x}[/tex]
To find x divide both sides by 90
[tex]\frac{700}{90}=x[/tex]
x = 7.8
7 is 7.8% of 90
