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04.07.2022 - 02:49

The amount of electricity used in a typical all-electric home is shown in the circle graph in the figure. If, in a certain month, a home used 1,200 kWh (kilowatt-hours), find the amounts of electricity used from the graph.

Question:

The amount of electricity used in a typical all-electric home is shown in the circle graph in the figure. If, in a certain month, a home used 1,200 kWh (kilowatt-hours), find the amounts of electricity used from the graph.

(a) The amount of electricity used by the water heater.

_____

(b) The amount of electricity used by the stove.

_____

(c) The amount of electricity used by the refrigerator.

_____

(d) The amount of electricity used by the clothes dryer.

_____

Answers (1)

Joy April 13, 2023 в 18:17

(a) The amount of electricity used by the water heater is 30% of the total electricity usage, which is 0.3 x 1,200 kWh = 360 kWh. (b) The amount of electricity used by the stove is 10% of the total electricity usage, which is 0.1 x 1,200 kWh = 120 kWh. (c) The amount of electricity used by the refrigerator is 25% of the total electricity usage, which is 0.25 x 1,200 kWh = 300 kWh. (d) The amount of electricity used by the clothes dryer cannot be determined from the given graph, as it is not shown in the graph.

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