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Mathematics
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OpenStudy (3arl0fgr3y):
I'm not sure how I do problems like these: If petroleum used by a power generator is 50% efficient and the lines that carry the electricity to the light are 25% efficient. What is the energy efficiency of turning this oil into light?
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satellite73 (satellite73):
no idea but i can guess
satellite73 (satellite73):
probably multiply \[.75\times.25\]
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