Question

120% of x is equal to 78.

A. Write an equation that shows the relationship of 120%, x, and 78.

B. Use your equation to find x. Show your reasoning.

It be great on how to solve this :)

Answer 1

A. 1.2x = 78

B. x = 65

Explanation:

Answer 2

A. 1.2x = 78

B. x = 65

Explanation:

Just informally, first:

x is the number that we don't know. 120% of that number is a number BIGGER than that number. 120% of x is 78. So 78 is BIGGER than the number that we don't know.

120% of x = 78

Change 120% to a decimal by moving the decimal two places to the left. Multiply.

1.2x = 78

To solve, divide both sides by 1.2

x = 78/1.2

x = 65