Question

Suppose tht four times the square of a numbr equals 20 times that number wht is the number​

Answer 1

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The number is 5.

Step-by-step explanation:

Finding the Number

To find the number, we have to form the algebraic equation first by translating the given mathematical problem above to algebraic expression. The algebraic equation is a statement that shows the equality of two algebraic expressions.

Equation:

Let "x" be the number.

"four times the square of a number" = 4x²

"20 times that number" = 20x

"four times the square of a number equals 20 times that number"

4x² = 20x

Solution:

4x² = 20x

4x²/4x = 20x/4x

x = 5

Final Answer:

The number is 5.

Checking:

To check, substitute the number.

4x² = 20x

4(5²) = 20(5)

4(25) = 100

100 = 100 ✔