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Wind turbines along a hilly...
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Mathematics, 12.03.2020 01:05 emily743
I REALLY NEED HELP WILL GIVE EVERYTHING GOOD IF YOU HELP ON 2 MORE
Wind turbines along a hilly ridge have recently been upgraded and currently have an average output of 870 kilowatt hours annually. That is 50% more than it was before the upgrades. What was the previous average output?
kilowatt hours
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