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erastova [34]
2 years ago
10

Is x=7 a solution to the equation x-5-3(x+2)? Fill in the blanks to answer the question.

Mathematics
2 answers:
Anuta_ua [19.1K]2 years ago
8 0

Answer:

1) 2=27

2) x= -11/2

3) no

Step-by-step explanation:

meriva2 years ago
8 0

-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{x = 7 is not a solution}

-------------------------------------------------------------------------------------------------------------

Given: \texts{x - 5 = 3(x + 2)}

Find:  \textsf{Determine if x = 7 is a solution}

Solution:  The first step would be to substitute 7 for every x that we have in the expression and then we simplify both sides.

<u>Substitute x with 7</u>

  • \texts{x - 5 = 3(x + 2)}
  • \texts{(7) - 5 = 3((7) + 2)}

<u>Simplify both sides</u>

  • \texts{2 = 3(7 + 2)}
  • \texts{2 = 3(9)}
  • \texts{2 = 27}

Since the numbers are not equal on both sides this evaluates to false meaning that x = 7 is not a solution of the expression that was provided.

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Answer:

4.9\%

Step-by-step explanation:

we know that

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Let

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The area of the circle (hole) is equal to

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assume

\pi =3.14

substitute

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A=0.785\ ft^2

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substitute

P=\frac{0.785}{16}

P=0.0491

Convert to percentage

0.0491*100=4.91\%

Round to the nearest tenth

4.9\%

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