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Lady_Fox [76]
3 years ago
7

In a class of 42 students, about 71% of them went trick or treating. About how many students in the class went trick or treating

?
Mathematics
2 answers:
Amanda [17]3 years ago
6 0
About 29 students went trick or treating
zubka84 [21]3 years ago
6 0

Answer:

About 29

Step-by-step explanation:

71% of 42 is 29.82.

You can't have .82 of a student, so it is 29!

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What is the slope of the line passing through the points (−3, 4) and (4, −1)?
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Solve for the value of: 14/5 =z/25
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Answer:

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Step-by-step explanation:

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The tables below show the values of y corresponding to different values of x: Table A x 3 3 2 y 1 0 0 Table B x 3 5 5 y −2 2 −2
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Write three equations whose solution is x=3.5
My name is Ann [436]

Answer:

  • 1. 2x + 23 = 30
  • 2. 3x + 19.5 = 30
  • 3. (10x - 20)/ 5 = 3

Explanation:

Work backward:

1. 2x + 23 = 30

Start:

  • x = 3.5

Multiply the equation by 2:

  • 2x = 2 (3.5)
  • 2x = 7

Subtract 30 from both sides

  • 2x - 30 = 7 - 30
  • 2x - 30 = -23

Add 23 and 30 to both sides:

  • 2x + 23 = 30

2. 3x + 19.5 = 30

Start:

  • x = 3.5

Add 6.5 to both sides:

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Multiply by 3:

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Distributive property:

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3. (10x - 20)/ 5 = 3

Start:

  • x=3.5

Multiply by 10:

  • 10x = 35

Subtract 20:

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Divide by 5:

  • (10x - 20)/ 5 = 15/5

  • (10x - 20) / 5 = 3
3 0
3 years ago
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