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spayn [35]
3 years ago
7

How many marbles must be in the 8th line ? 

Mathematics
2 answers:
Nat2105 [25]3 years ago
7 0

Answer:

?? Which line

Zarrin [17]3 years ago
3 0
Where is the picture at
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Time to paint the living room. The room measures 20 feet wide by 30 feet long by 12
chubhunter [2.5K]

The cost to paint the walls and the ceiling is $855

<h3></h3><h3>How much will it cost?</h3>

First, we need to find the area that will be painted.

The area of two of the walls is:

A = 20ft*12ft = 240ft²

The area of the other two walls:

A' = 30ft*12ft = 360ft²

The area of the ceiling is:

A'' = 20ft*30ft = 600ft²

We also need to subtract the areas of the two doors and the 4 windows.

Each door is 7ft by 3ft, so the area of each door is:

a = 7ft*3ft = 21ft²

Each window is 4ft by 3ft:

a' = 4ft*3ft = 12ft²

Then the total area that will be painted is:

area = 2A + 2A' + A - 2a - 4a'

area = 2*( 240ft²) + 2*(360ft²) + 600ft² - 2*(21ft²) - 4*(12ft²)

area = 1,710 ft²

We know that we need two coats of paint to cover that area, and the cost per square foot of paint is $0.25, then the total cost is:

C = $0.25*2*(1,710) = $855

The cost to paint the walls and the ceiling is $855

If you want to learn more about areas:

brainly.com/question/24487155

#SPJ1

6 0
2 years ago
Can someone help me I really need it
Dennis_Churaev [7]

Answer:

The 3 lines are parallel.

Step-by-step explanation:

To draw the lines with the slope of 1/3 choose any point and mark it, then go up 1 square and right 3 squares and mark that point. Draw a line connecting those 2 points. Now choose another point and do the same thing. Then once more. Lines with the same slope are parallel.

Hope this helped! Please mark Brainliest.

8 0
3 years ago
PLZ HELP I REALLY NEED IT
Ber [7]

Answer:

18 Inches

Step-by-step explanation:

1 foot + 12 in + 6 in = 18 in

6 0
3 years ago
Help plz will give brainlyst​
fredd [130]

Answer will be no A I think that

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3 years ago
Is 7.64 rational or irrational
Svet_ta [14]

i think its irrational

Step-by-step explanation:

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3 years ago
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