Question

Set up a proportion and use cross multiplication to solve. 100 is 250% of?

Answer 1

Answer:

$40$  

Step-by-step explanation:

Let

x-------> the number

$\frac{x}{100\%}=\frac{100}{250\%}$

$x*250\%=100*100\%\\ \\x=10,000/250\\ \\x= 40$

Answer 2

100/x =250/100
100 * 100 / 250 =x
X= 40