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poizon [28]
3 years ago
6

Out of 40 students in class 8,20% were absent.How many students were present?​

Mathematics
1 answer:
Alenkasestr [34]3 years ago
3 0

Understanding:

The total number of students is 40. 8.20% of them were absent, which means the rest were present, or in other words, (100-8.20)% were present or 91.8%. We can find the actual number of present students by multiplying the percentage of present students by the total number of students.

Solution:

Present Percentage = 91.8% or \frac{91.8}{100}

Present Students = (\frac{91.8}{100})(40)=36.72, since we are dealing with people we have to round it, so the present students are actually 37.

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Find the value of x, y, and z in the parallelogram below.
telo118 [61]

The values of x, y, and z of the parallelogram are -19°, -115° and 27°

<h3>What is a parallelogram?</h3>

A parallelogram is a two-dimensional geometrical shape whose sides are parallel to each other. It is a type of polygon having four sides (also called quadrilateral), where the pair of parallel sides are equal in length. The Sum of adjacent angles of a parallelogram is equal to 180 degrees.

for a parallelogram opposite angles are equal

-4x -1 = 75

-4x = 76

x = 76/-4

x = -19°

sum of adjacent angles are supplementary

(-y-10) + 75 = 180

-y + 65 = 180

-y = 180 - 65

-y = 115

y = -115°

Also

4z - 3 + 75 = 180

4z + 72 = 180

4z = 180 - 72

4z = 108

z = 108/4

z = 27°

In conclusion, the values of x = -19, y = -115, z = 27

Learn more about Parallelogram: brainly.com/question/20526916

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8 0
1 year ago
HELP PLEASE DUE IN 4 MINUTES
iragen [17]

Answer:

Mode: 11

Median: 11

Step-by-step explanation:

mode is number that shows up the most

Arrange numbers in order :

7 8 9 10 11 11 12 13 18

number physically in the middle is median

5 0
2 years ago
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PlS help lots of points
Len [333]
I feel like there is something missing from this question, for example how large is the tree house? If these are just plain measurements, then I would opt for B.

3 0
2 years ago
Can you help show me where they belong ? pls help asap
kozerog [31]

y=3x, y=(2/7)x,-0.5=y are all on direct the other ones are on the other side i just did the question they correct. :)

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3 years ago
DECIMALS
s344n2d4d5 [400]

Answer:

154

Step-by-step explanation:

86.192 and 68.36 rounded up to the nearest whole is 86 plus 68 would be 154

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3 years ago
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