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wel
4 years ago
13

A company wants to decrease their energy use by 10%. If their electric bill is currently $1,500 a month, what will their bill be

if they are successful? Give your answer accurate to at least the nearest dollar.
Mathematics
1 answer:
Schach [20]4 years ago
8 0

Answer:

  $1350

Step-by-step explanation:

Apparently, we're to assume that the bill is proportional to the energy usage. Then reducing energy by 10% would reduce the bill by 10%.

10% of the bill is 0.1 × $1500 = $150.

If the bill is reduced by $150, it becomes ...

  $1500 -150 = $1350

If they are successful, their bill will be $1350.

_____

In general, utility bills have a number of fixed charges or fees that are not proportional to the quantity of utility used. Too, they can have graduated rates that make them non-proportional.

Figuring 90% of some arbitrary number might be an interesting math exercise, but it has no relation to the world of utility billing for a 10% change in usage.

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Choose the composition function that gives the final sale price after a 10% discount is followed by a $150 coupon.
Mice21 [21]
Let's say the function for the discount is f and the function for the coupon is g
f(x)= 0.1x
g(x)= x-150
If you want to the the discount then the coupon, your composition function would look like this:
f(g(x))=0.1(x-150)
Hope this helps!

7 0
3 years ago
Read 3 more answers
A bag contains 7 blue, 4 yellow, 4 green, and 5 red marbles. Find the probability of choosing a green marble without looking. Ma
Naddik [55]

Answer:

1/4

Step-by-step explanation:

total balls=7+4+4+5=20

probability of green marble=?

green marbles are 5 so,

       Probability=number of favourable outcomes / number of all possible outcomes

   total outcomes=20

green ball chances=5

       =5/20

          =1/4

3 0
3 years ago
What is the center and radius for the circle with equation ...
PolarNik [594]

Answer:

Step-by-step explanation:

5 0
4 years ago
A parallelogram has sides 8 ft and 6 ft and an area of 54 ft 2. What is the length of the
Colt1911 [192]

Step-by-step explanation:

there is something wrong with your question.

there is no parallelogram with 8 and 6 ft side lengths that has an area of 54 ft².

the maximum area of a parallelogram with 8 and 6 ft side lengths is 48 ft². and that is a rectangle 8×6 as a special form of a parallelogram.

the area of any parallelogram is calculated

Ap = base length × height

and height is the length of the line perpendicular to the base line to one of the corners on the opposite side (as long as the base line).

if Ap = 54, and the base length is 8, this means

54 = 8 × height

height = 54/8 = 6.75 ft

but the height can only be the length of a side connected to the base line or less. not longer.

and in our example here, this connected side is 6. so, the height can only be 6 or less. not 6.75.

so, there must be something wrong with your numbers.

once you get the actual numbers, use my approach above with them (replace whatever number is wrong here by the true value).

8 0
3 years ago
Evaluate 9-8/s when s equals 4​
Aleksandr-060686 [28]

Answer:

1/4 or 0.25

Step-by-step explanation:

9-8=1

1/4

8 0
3 years ago
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