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Ainat [17]
3 years ago
14

Ayala and sam were partners on a science project. Ayala spent 2 3/4 hours working on the project.Sam spent 1 3/4 on the project.

How long did they work altogether ?
Mathematics
1 answer:
sergij07 [2.7K]3 years ago
8 0

Answer:

  4 1/2 hours

Step-by-step explanation:

Total time worked was ...

  2 3/4 + 1 3/4 = (2 +1) + (3/4 +3/4)

  = 3 + (1 1/2) = 4 1/2 . . . hours

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Answer:

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Step-by-step explanation:

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

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y = -3x + 6

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in <em>y</em>:                                                                                                 3 = -3x + 6
  2. [Subtraction Property of Equality] Subtract 6 on both sides:                      -3 = -3x
  3. [Division Property of Equality] Divide -3 on both sides:                                1 = x
  4. Rewrite/Rearrange:                                                                                        x = 1

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define original equation:                                                                               y = -3(1) + 6
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Step-by-step explanation:

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