Question

the amount of electricity used in a typical all - electric home is shown in the circle graph below. if, in a certain month, a home used 1,100 kwh (kilowatt - hours), find the amount of electricity used from the graph. the amount of electricity used by the water heater 132 x kwh. (the circle graph has sections: miscellaneous 19%, refrigerator 19%, stove 4%, clothes dryer 5%, water heater 11%, heating and air conditioning 42%)

Explanation:

Step1: Identify the percentage for water heater

From the circle graph, the water heater uses 11% of the total electricity.

Step2: Calculate the electricity used by water heater

Total electricity used is 1100 kWh. To find 11% of 1100, we use the formula: $ \text{Amount} = \text{Total} \times \frac{\text{Percentage}}{100} $
So, $ 1100 \times \frac{11}{100} = 1100 \times 0.11 = 121 $

Answer:

121 kWh