18 is 9% of what number? show your work, thank youu
For me, I use proportion to solve this kind of questions.
18 is 9% of x
Set up your proportion:
18 = 9%
--- ----
x = 100%
Since a percent equals 100, you have to put 100% below 9%
Then cross multiple divide; 100 x 18 / 9 which equals 200
x=200
18 is 9% of 200
Answer:
18 is 9% of 200
Step-by-step explanation:
Hello, I think I can help you with this
You can easily solve this by using a simple rule of three.
Step one
Let
if
18 ⇔ 9%
x? ⇔ 100%
Step two
Do the proportion and find x,
\(\frac{18}{9}=\frac{x}{100}\\ solve\ for\ x\\x=\frac{100*18}{9}\\ x=\frac{1800}{9}\\ x=200\\\\\)
x=200
Hence, 18 is 9% of 200
I hope it helps, have a great day.