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Mariana [72]
3 years ago
15

What is 2c+7=21 please help

Mathematics
2 answers:
nordsb [41]3 years ago
5 0
<span>What is 2c+7=21

1. firstly you minus the 7 from both sides

                      </span>2c+7=21
                          -7    -7

= 2c=14



2. Then you divide each side by two.


                     2c=14
                      ÷2  <span>÷2


= c=7


3. Then substitute it back in:

1.       2x7 = 14
2.       14+7 =21


C=7</span>
mylen [45]3 years ago
4 0
Hello there.

<span>Question: What is 2c+7=21 please help

Answer: Solve the equation:
Subtract 7 from both sides:
21 - 7 = 14
2c = 14.
Divide both sides by 2:
14/2 = 7
c = 7.

</span>Hope This Helps You!
Good Luck Studying ^-^
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Answer:

110 ft  

Step-by-step explanation:

The length of fencing is four times the perimeter of one garden.

The formula for the perimeter of a rectangle is  

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Calculation:

P = 8l + 8w = 8×9¼ + 8×4½ = 72⁸/₄ + 32⁸/₂ =(72 + 2) + (32 + 4) = 74 + 36 = 110 ft

The total length of fencing is 110 ft.

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Step-by-step explanation:

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