Answer:
20
Step-by-step explanation:
We have, 45% × x = 9
or,
45/100 × x = 9
Multiplying both sides by 100 and dividing both sides by 45,
we have x = 9 × 100/45
x = 20
If you are using a calculator, simply enter 9×100÷45, which will give you the answer.
