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dimaraw [331]
3 years ago
14

Mr Cameron places the names of his students in a hat order to randomly call on students. There are 12 girls and 10 boys in the c

lass what is the probability that a boy will be called on?
A. 1/22
B. 5/11
C. 1/10
D. 5/6
Mathematics
2 answers:
NikAS [45]3 years ago
8 0
The answer is D

10/12 = 5/6
Yuliya22 [10]3 years ago
3 0

Answer:

b 5/11

Step-by-step explanation:

10/22

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I need help with my<br> math
Zinaida [17]

Answer:

Slope: 2

a: 5

b: 6

y-coordinate when x = 0: -2

Step-by-step explanation:

To find the slope, you need to divide the change in the y values between two points on a line by their change in x values. The two complete points given are (6, 10) and (2, 2), so doing this for them would be...

(10-2)/(6-2) = 8/4 = 2, so your slope is 2

To find a, you must use this slope by counting from one of the points. For every one you go to the right, you go up two. So, how many times do you need to go up 2 (slope), from 2 (starting point's y coordinate), to get to 8 (target point's y coordinate)? (8-2)/2 = 6/2 = 3, so 3 times. Add that to 2 (starting point's x coordinate) to get 5, so a is 5.

To find b, you can just use (6, 8). You know you're going to the LEFT one, so you must go DOWN 2. Subtract 2 from 8 to get 6.

For the last question, do the same with (2, 2). You're going LEFT 2, so you're going DOWN 4. Subtract 4 from 2 to get -2.

Let me know if you need a more in-depth explanation on any part of this!

8 0
2 years ago
Which is the greater rate of change? <br><br> -1/2<br><br> 4/1
mote1985 [20]
4/1 is a greater rate of change because it is the same as 4. A whole number will always be greater than a fraction and also the fraction is negative which makes it even smaller than a regular fraction. I hope this answers your question! :)
3 0
3 years ago
I need some help with this
natima [27]

Answer:

8

Step-by-step explanation:

8 0
3 years ago
Simplify the expression 56-2(4+x)
lesya692 [45]

Answer:

48+x

Step-by-step explanation:

56-2(4+x)

56-8+x

48+x

5 0
3 years ago
Jane has a checkbook balance of $68.00. She then writes two checks, one for $5.00 and one for $62.50. She also deposits $75.00.
nataly862011 [7]
That would be D. The first two would be fight (I think) except they don't include turning the calculator on. C is just plain wrong. D has all the right keystrokes.
8 0
3 years ago
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