energy output = 25 units\nenergy input = 100 units\nif you want to calculate energy efficiency, what value…

energy output = 25 units\nenergy input = 100 units\nif you want to calculate energy efficiency, what value should be substituted into the green box?\n25 ÷ ? = energy efficiency\nenergy output ÷ energy input = energy efficiency\nhint: enter a number.

energy output = 25 units\nenergy input = 100 units\nif you want to calculate energy efficiency, what value should be substituted into the green box?\n25 ÷ ? = energy efficiency\nenergy output ÷ energy input = energy efficiency\nhint: enter a number.

Answer

Answer:

100

Explanation:

Step1: Recall efficiency formula

Energy Efficiency = $\frac{Energy\ Output}{Energy\ Input}$

Step2: Identify given values

Energy Output = 25 units, Energy Input = 100 units

Step3: Determine value for box

According to formula, 100 should be in the box for 25 $\div$ [100] = Energy Efficiency.