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Komok [63]
3 years ago
13

The ratio of boys to girls is 5:6 if there are 72 girls what is the total number of students in the year level?

Mathematics
2 answers:
sweet [91]3 years ago
5 0

Answer:

60 boys + 72 girls = 132 total students

Step-by-step explanation:

72/6 = 12

12*5= 60

Hope this helped :)

ICE Princess25 [194]3 years ago
4 0

Answer:

there is a 60 boys compared to girls

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Answer: \dfrac{15}{32}

Step-by-step explanation:

Given : The number of cherry lollipop = 5

The total number of lollipop = 8

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The probability of selecting a cherry lollipop is given by :_

\text{P(Cherry)}=\dfrac{5}{8}

The probability of selecting a lollipop other than grape is given by :_

\text{P(Other than grape)}=\dfrac{6}{8}

Since, there is replacement , then the events are independent of each other.

Now, the probability that Julie will select a cherry lollipop and then a lollipop other than grape is given by :-

\text{P(Cherry and other than grape)}=\dfrac{5}{8}\times\dfrac{6}{8}=\dfrac{15}{32}

Hence, the required probability =\dfrac{15}{32}

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3 years ago
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Given: an n-gon

Prove: The sum of the measures of the interior angles is 180(n – 2)°.

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We are given an n-gon, which has n sides and n vertices.

Answers:

1. If we choose one of the vertices, we can draw <u>n-3</u> diagonals.

2. These diagonals form <u>n-2</u> triangles.

3. The sum of the interior angle measures of a triangle is <u>180</u> degrees.

4. <u>n – 2</u> triangles would have an interior angle measure sum of <u>180</u> degrees.

5. Therefore, the sum of the measures of the interior angles of an n-gon is 180(n – 2)°.

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