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kvasek [131]
4 years ago
8

In a class of students, the following data table summarizes how many students have a

Mathematics
1 answer:
Allushta [10]4 years ago
6 0

Answer:

Probability = \frac{6}{29}

Step-by-step explanation:

Given

------------------------------Has a brother | Does not have a brother

Has a sister --------------------------- 6 ----------------- 8

Does not have a sister  -----------2 ------------------ 13

Required

Probability of having a sister and a brother

First, the total number of students has to be calculated;

Total = 6 + 2+ 8 + 13

Total = 29

Number of students that have a sister and a brother is represented with data in row 1 and column 1 i.e. 6

At this point, the probability can then be calculated;

Probability = Number of students that have a sister and a brother divided by Total number of students

Probability = \frac{6}{29}

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lilavasa [31]

Answer:

379.75

Step-by-step explanation:

15.5 x 2450

100

= 379.75

7 0
4 years ago
What does it equal? And how do you know that
zvonat [6]
You can cancel if the top and bottom are both multiplication and they have common factors.

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4 years ago
Thirty seven divided by nine
Sunny_sXe [5.5K]

Answer:

4.11 (rounded to the hundredth place, the actual answer is 4.1(with the one repeating))

Step-by-step explanation:

To solve 37 divided by 9 you have to do long division or you can use a handheld calculator.

To solve it through long division,

9 can go into 3 zero times

9 can go into 37 four times though

9*4 is 36

So subtract 36 from 37, leaving 1.

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Add a zero behind the one and 9 can go into 10 once.

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7 0
4 years ago
Kristin bought a pack of 12<br> pencils for $1.25. How<br> much was each pencil?????????????
gregori [183]

Answer:

$0.10/pencil

Step-by-step explanation:

Find the unit cost.  To do this, divide $1.25 by 12 pencils, obtaining:

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12 pencils

5 0
4 years ago
Can someone please help me? Please
vesna_86 [32]
 If length AM = AK then it is isosceles.

M(-1,-6), A(-4,5)

AM=((5-(-6))²+(-4-(-1)))^(1/2)=11.401

A(-4,5) and K(5,-2)

AK=((-2-5)²+(5+4)²)^(1/2)=11.401

so the triangle is isosceles.



3 0
3 years ago
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