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goldfiish [28.3K]
1 year ago
13

The temperature was -20.5°F at 5 A.M. and rose 5 degrees per hour for the next 5 hours. Melissa says the temperature at 10 A.M.

was -5.5°F. Which statement identifies Melissa’s error and the correct answer?A.Melissa multiplied incorrectly. The correct answer is -0.5°F.B.Melissa multiplied incorrectly. The correct answer is 9.5°F.C.Melissa added incorrectly. The correct answer is 4.5°F.D.Melissa added incorrectly. The correct answer is 5.5°F.
Mathematics
1 answer:
kati45 [8]1 year ago
4 0

The statement which identifies Melissa’s error and the correct answer is; Melissa added incorrectly. The correct answer is 4.5°F

<h3>Temperature</h3>

  • Initial temperature = -20.5°F
  • Change in temperature per hour = 5°F
  • Number of hours = 5

New temperature = Initial temperature + (Change in temperature per × Number of hours)

= -20.5°F + (5°F × 5)

= -20.5°F + (25°F)

= 4.5°F

Learn more about temperature:

brainly.com/question/2339046

#SPJ1

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12. Determine the slope of the line having the equation 2x + y = 12
Virty [35]

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b. -2

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First, isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Subtract 2x from both sides of the equation:

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2 years ago
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Find the value of each variable so that the quadrilateral is a parallelogram.
Dmitry [639]

Answer:

<em>x = -2</em>

<em>y = -5</em>

Step-by-step explanation:

<u>Properties of a Parallelogram</u>

  • Two pairs of opposite sides are parallel.
  • Two pairs of opposite sides are equal in length.
  • Two pairs of opposite angles are equal in measure
  • The diagonals bisect each other.
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Each diagonal is divided into two measures expressed with variables. Since diagonals bisect each other:

y + 23 = -4y - 2.  And

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Solve the first equation. Adding 4y:

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Dividing by 5:

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-3x = 6

Dividing by -3:

x = -2

Solution:

x = -2

y = -5

4 0
2 years ago
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