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KIM [24]
3 years ago
10

Using the variable c for the unknown number what is the sum of 5 times a number and 9 is equal to 6

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
6 0

5c + 9 = 6  \\
5c = 6 - 9 \\
5c =  - 3
c =  - 3 \div 5 \\ c =  -  \frac{3}{5}

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Answer:

B. 5 rolls

Step-by-step explanation:

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Shorter walls: (10.5\times8)\times2 = 168ft ^ 2 (6 inches equals one foot)

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Total area to wallpaper: 200 + 168 -24 -21 = 323ft ^ 2

Amount of paper needed: 323\times1.1 = 355.3ft ^ 2

30in = 24in + 6in = 2ft + 0.5ft = 2.5ft. That is, the area of ​​a roll of paper is 2.5\times30 = 75ft ^ 2

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3 years ago
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4 years ago
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Brut [27]

Answer:

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