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aalyn [17]
2 years ago
13

100 students were estimated at a

Mathematics
1 answer:
Alina [70]2 years ago
7 0

Answer:

20%

Step-by-step explanation:

Use the formula:

The "|" symbol represents absolute value and the dashed line represents a division line.

                         | Theoretical Value - Actual Value |

Percent Error = --------------------------------------------------   × 100

                         |              Theoretical value              |

  • 100 students is the theoretical value
  • 120 students is the actual value

100 - 120 = -20

-20 / 100 = -0.2

|-0.2| = 0.2

0.2 × 100 = 20

The answer is 20%

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3x +12 =90 what is x
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Answer:

x=26

Step-by-step explanation:

3x +12 =90

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3x=78

divide 3 from each side

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3 years ago
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lorasvet [3.4K]

Answer:

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Step-by-step explanation:

Hello!

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3 years ago
1)There are whole numbers that are not integers.
tiny-mole [99]

Answer:

1).false 2). false 3).true 4). true

Step-by-step explanation:

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