Question

Half the square of a number is the same as five times the number. What is the number?

Answer 1

Let the number be x

According to question

X2/2=5X
X=10

The answer is 10

Answer 2

Let the number be x
(X × X)÷2=5X
X square /2=5X
X2 = 10X
X2/10X=1
The power of X is canceled
X/10=1
X=10
Checking= (10×10)÷2 = 10×5
100÷2=50
50 = 50
Therefore,the number is 10