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nignag [31]
3 years ago
13

A marathon is 26.2 miles long sue wants to run a marathon in 4 hours what is the average number of miles she must run in an hour

?
Mathematics
1 answer:
harkovskaia [24]3 years ago
8 0

Answer:

6.55 miles in one hour

Step-by-step explanation:

26.2 divided by 4 = 6.55

that would give you the miles in one hour.

Hope that helps:)

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Convert each mixed number to an improper fraction
Pani-rosa [81]

Answer:

43/8

Step-by-step explanation:

5 x 8 = 40

40 + 3 =43

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3 years ago
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To answer your question, it is shown in the graph below.

y=-3x-6 is parallel to y=-3x-2

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3 years ago
4-29 please :) Thank you <3
timofeeve [1]

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4 0
3 years ago
4x - 2y = -20<br> 7x + 2y = -2
Brut [27]

Answer:

(-2, 6)

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

<u>Algebra I</u>

  • Solving systems of equations using substitution/elimination
  • Solving systems of equations by graphing

Step-by-step explanation:

<u>Step 1: Define systems</u>

4x - 2y = -20

7x + 2y = -2

<u>Step 2: Rewrite systems</u>

4x - 2y = -20

  1. Add 2y to both sides:                    4x = 2y - 20
  2. Divide 4 on both sides:                 x = 1/2y - 5

<u>Step 3: Redefine systems</u>

x = 1/2y - 5

7x + 2y = -2

<u>Step 4: Solve for </u><em><u>y</u></em>

<em>Substitution</em>

  1. Substitute in <em>x</em>:                         7(1/2y - 5) + 2y = =-2
  2. Distribute 7:                              7/2y - 35 + 2y = -2
  3. Combine like terms:                11/2y - 35 = -2
  4. Add 35 to both sides:              11/2y = 33
  5. Isolate <em>y</em>:                                   y = 6

<u>Step 5: Solve for </u><em><u>x</u></em>

  1. Define original equation:                    7x + 2y = -2
  2. Substitute in <em>y</em>:                                     7x + 2(6) = -2
  3. Multiply:                                                7x + 12 = -2
  4. Subtract 12 on both sides:                   7x = -14
  5. Divide 7 on both sides:                        x = -2

<u>Step 6: Graph systems</u>

<em>Check the system.</em>

8 0
3 years ago
What value of x makes the equation true?<br> −4(x−3)=−28
Vesnalui [34]

Answer:

x = 10.

Step-by-step explanation:

First we must divide both sides by -4, and we get x - 3 = 7. Then we add 3 to both sides and get x = 10.

3 0
2 years ago
Read 2 more answers
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