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andrew-mc [135]
3 years ago
11

If you have 18 students and all are paired up at least once how many projects in the year

Mathematics
2 answers:
devlian [24]3 years ago
5 0
9. A pair is two. 18 divided by two is 9.
KatRina [158]3 years ago
4 0
It would be 9 because you get half the number of projects because 18 students are partners and if you divide that you would have 9 groups of 2 and if you multiply that by the number of projects you would get the number of projects (ex:18 dividend by 2 it's 9 then if there is three projects assigned you multiply 9 by 3 to get 27 projects got it?
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How do I express the following as a fractional part of a year?
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Answer:

See below.

Step-by-step explanation:

A year has 12 months and 365 days.

3 months: 3/12 year = 1/4 year

55 days: 55/365 year = 11/73 year

1 month: 1/12 year

7 months = 7/12 year

120 days = 120/365 year = 24/73 year

4 0
3 years ago
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Solve: <br><br> -7/2 + (-5 1/2) + 8 3/4
Alexxandr [17]
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solniwko [45]

Answer:

m∠2 = 78°

Step-by-step explanation:

From the given picture,

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Therefore, m∠1 = 78°

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8 0
3 years ago
Given a dilation around the origin, what is the scale factor K?<br><br> Do, K = (20,16) → (-5,-4)
Rudik [331]

Answer:

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Step-by-step explanation:

Dilation of any image changes its size and the shape remains same.

The scale factor is the ratio of dilated image to original image.

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It means k = x₂/x₁ or y₂/y₁

K = -5/20 = -1/4 or K = -4/16 = -1/4.

<u>The negative value of scale factor (K) indicates dilations with 180 degree rotation of the dilated image.</u>

Hence the scale factor is K = -1/4.

5 0
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djverab [1.8K]

Answer:

102

Step-by-step explanation:

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Hope this helps:)

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3 0
2 years ago
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