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jek_recluse [69]
3 years ago
7

Solve the equation 5n+7=21

Mathematics
2 answers:
Simora [160]3 years ago
5 0

Answer:

Hi there, I believe the answer to this equation is: 2.8

Step-by-step explanation:

Subtract 7 on both sides so

5n+7=21-7

you are left with 5n=14 you need to get n by itself so divide 5 on both sides.

5n/5 = 14/5

n=2.8

Hope this is correct :)

Have a great day

kondor19780726 [428]3 years ago
5 0

Answer:

Subtract 7 on both sides so

5n+7=21-7

you are left with 5n=14 you need to get n by itself so divide 5 on both sides.

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7/5=p/100<br> help me in this :(
velikii [3]

Answer:

p=140

Step-by-step explanation:

7/5=p/100

1.4=p/100

*100  *100

140=p

6 0
3 years ago
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A gallon of latex paint can cover a 400 square foot room Maria has a rectangular room whose dimensions are 8 feet by 20 feet wit
tigry1 [53]

Answer:

The answer to your question is: 1.78 gallons

Step-by-step explanation:

Data

1 gallon = 400 ft²

room = 8 ft x 20 ft x 7 ft

Process find the area of the 6 walls of the room

Area of the floor and ceiling

                                              A = base x width

                                              A = 20 x 8

                                             A = 160 ft²  x 2

                                             A = 320 ft²

Area of the walls

                                 Area = base x width

                                 Area = 2(20 x 7) + 2(7 x 8)

                                Area = 280 + 112

                                 Area = 392 ft²

Total area = 320 + 392 = 712 ft²

                                1 gallon ------------------- 400 ft²

                                x            -------------------  712 ft²

                                x = (712 x 1)/400

                                x = 1.78 gallons

I consider that Maria will paint both the floor and the ceiling

6 0
4 years ago
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weeeeeb [17]
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3 years ago
What is 11 divided by 594
yulyashka [42]

Answer:

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Step-by-step explanation:

Use the bus-stop method to find it out

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Sergio [31]

Answer:

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Step-by-step explanation:

Happy to help

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2 years ago
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