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Dmitrij [34]
3 years ago
9

Samantha is trying to determine how she can save money by cutting her electricity bill. She is currently on a standard use plan

for electricity and pays 8.5 cents per kWh. She keeps track of when she uses electricity and is thinking about switching to an interval use plan for electricity which costs 2 cents per kWh for off-peak use and 13 cents per kWh for on-peak use. Off-peak hours are from 8PM - 8AM and on-peak hours are from 8AM - 8PM. Below is the chart of her electricity usage:
Samantha’s Electricity Usage Per Month
1100 kWh between 8PM and 8AM
800 kWh between 8AM and 8PM

Explain and justify which plan would best suit her needs.
a.
Samantha should not switch to the interval use plan, which would cost $126.00 more per month.
b.
Samantha should switch to the interval use plan, which would save her $126.00 per month.
c.
Samantha should switch to the interval use plan, which would save her $35.50 per month.
d.
Samantha should not switch to the interval use plan, which would cost $35.50 more per month.
Mathematics
1 answer:
Harman [31]3 years ago
7 0

Answer:

Step-by-step explanation:

The first step is to save the money the second step is when the bill comes out to pay it right away and then the third one is to do it correctly

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I would say a triangle with two right angles because a triangle's angles add to 180 degrees. If a triangle has two right angles, it means that two angles will be 90 degrees, which add to 180 degrees. A triangle must have three angles and sides, and it is not possible for the last angle to be 0 degrees.

Hope this helps
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3 years ago
F(x) = -1/3 x + 7 determine the input that would give an output value of 2/3
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Ur output value is f(x).....so to do this problem u need to sub in 2/3 for f(x) and solve for the input value which is x

f(x) = -1/3x + 7
2/3 = -1/3x + 7 ...multiply everything by 3
2 = -x + 21
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3 years ago
The sum S of the first n integers is given by the formula S=1/2n(n+1). How many integers must be taken to have a sum of
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Answer:

25

Step-by-step explanation:

We require to solve for n, hence

\frac{1}{2} n(n + 1) = 325

multiply both sides by 2 to eliminate the fraction

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n² + n = 650

subtract 650 from both sides to have equation in standard form

n² + n - 650 = 0 ← in standard form

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equate each factor to zero and solve for n

n + 26 = 0 ⇒ n = - 26

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