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MatroZZZ [7]
3 years ago
10

The bill for a domestic power in a house is reduced from $120 to $90 per month. By what ratio has the bill been decreased?

Mathematics
1 answer:
rewona [7]3 years ago
8 0
It is 25%. This is calculated by

\frac{120-90}{120}=0.25
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What is the domain of f(x) = 3x - 27
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5 0
3 years ago
Please help I'm desperate...
Evgen [1.6K]
Ok here’s the answer! I again had to crop out the first step. here it was to divide equation 1 by 3 and add that to equation 2. all you need do you show that step is to write equation 1: -3x+2y=8 and equation 2: (11y/3)=35/3

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Cheers
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6 0
4 years ago
Read 2 more answers
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