A model house that runs completely on renewable energy uses 22 windmills and 33 solar panels. Each windmill generates MM kilowatt-hours (kWh) of energy per year, ad each solar panel generates SS kWh per year. Which expressions can we use to describe how many kWh of energy the model house will output in 1010 years?

Question

Pierce Lamb

Mathematics

22 April, 20:42

A model house that runs completely on renewable energy uses 22 windmills and 33 solar panels. Each windmill generates MM kilowatt-hours (kWh) of energy per year, ad each solar panel generates SS kWh per year. Which expressions can we use to describe how many kWh of energy the model house will output in 1010 years?

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Answers (2)

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Baby Bird · Answer 1

B and D

Step-by-step explanation:

Did it on khan

Alicia Garrison · Answer 2

Total energy output in 1010 years = (22·M + 33·S) * 1010 kWh

Step-by-step explanation:

Number of windmills in the model house = 22

Energy generated by one windmill per year = M kWh

Energy generated by 22 windmills per year = 22 * M kWh

Number of solar panels in the model house = 33

Energy generated by one solar panel per year = S kWh

Energy generated by 33 solar panels per year = 33 * S kWh

Now, Total energy output by 22 windmills and 33 solar panels in one year = (22 * M + 33 * S) kWh

Hence, Total energy output in 1010 years = (22·M + 33·S) * 1010 kWh