Answer: x = -3, x=+/2=1.4142
Yes, they are.
You're not changing anything fundamental about them. They're just flipped expressions.
Answer:
450
Step-by-step explanation:
If 81 is 18% of a number then we can say that:
x × 0.18 = 81
We multiply by 0.18 because 18% is 0.18 as a decimal. So to work out the real number we divide 81 by 0.18:
81 ÷ 0.18 = 450
