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Anika [276]
3 years ago
6

Will give brainliest if you help me

Mathematics
1 answer:
Slav-nsk [51]3 years ago
6 0

Answer:

B is the correct choice:

(10 x 10 x 30) + (10 x 10 x 12)

Step-by-step explanation:

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An electric company charges a certain rate per kilowatt-hour (\text{kWh})(kWh)left parenthesis, start text, k, W, h, end text, r
Studentka2010 [4]

Step-by-step explanation:

The equation is given by :

63.25=800r+3.50

Here,

63.25 is the electric company charges

3.5 is an administrative fee

800 is charge per kilowatt hours

r is rate per kilowatt hour

In this proble, we need to tell that what does r represents. Hence, r shows kilowatt per hour.

We can solve it as follows :

63.25-3.5=800r+3.50-3.50 (Subtracting 3.50 to the both sides)

59.75=800r

r=\dfrac{59.75}{800}\\\\r=0.0746

8 0
3 years ago
The average test scores in a physics class is normally distributed with a standard deviation of 5.4. 50 scores with a sample mea
andrey2020 [161]

Answer:

to my knowledge

this question is gigantic

6 0
2 years ago
Given that 8x – 3y = 36
Vedmedyk [2.9K]

Answer:

x = 45/8

Step-by-step explanation:

8x – 3y = 36

Let y=3

8x – 3*3 = 36

8x - 9 = 36

Add 9 to each side

8x -9+9 = 36+9

8x = 45

Divide each side by 8

8x/8 = 45/8

x = 45/8

4 0
3 years ago
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11. Describe and correct the error in evaluating the expression.<br> –21-7)= -14
likoan [24]

Answer: -28

Step-by-step explanation:

8 0
3 years ago
A beaker contains 0.5 liter of solution.Jordan uses 0.08 of the solution for an experiment.How much of the solution does Jordan
schepotkina [342]
I feel like this is a trick question

In the question it states "Jordan uses 0.08 of the solution for an experiment"

Which means that the answer is 0.08. Jordan uses 0.08 of the solution
5 0
3 years ago
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