Question

2.5 is 10% of what number?

Answer 1

is means equal
of means multiplication

so we get


`2.5 = (10)/(100) * n \\ 2.5 = .1 * n \\ n = 25`

Hope that helps :)

Answer 2

2.5=10/100x

Simplify

2.5=1/10x

Flip the equation.

1/10x=2.5

Multiply both sides by 10.

10*(1/10x)=(10)*(2.5)

x=25