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tiny-mole [99]
2 years ago
11

PLEASE HELLPPPP Ms. Rudolph randomly selects one student from a group of students.

Mathematics
1 answer:
Yakvenalex [24]2 years ago
4 0

Using it's concept, it is found that the probability that the selected student is wearing a black shirt is given by:

p = \frac{n}{n + 15}

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

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

In this problem, we have that out of n + 6 + 9 = n + 15 students, n are wearing black shirts, hence the probability is given by:

p = \frac{n}{n + 15}

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

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A triangle has angles that measure 106° and 59°.
sdas [7]
Answer: 15°

Steps:
106 + 59 + x = 180
165 + x = 180
x = 180 - 165
x = 15

Check:
106 + 59 + 15 = 180
106 + 59 + 15 = 180
180 = 180 ✅

I would appreciate brainliest if this was helpful, correct, and had clear steps! :) let me know if you have any questions!
3 0
3 years ago
SW=2x+y, WC= x-2y, W is the midpoint of SC, and SC=20, find the values of x and y.
zysi [14]

Answer:

x= 6

y = -2

Step-by-step explanation:

Given

SW = 2x + y

WC = x - 2y

SC = 20

Required

Determine x and y

Since W is the midpoint;

SW = WC = \frac{1}{2} * SC

SW = WC = \frac{1}{2} * 20

SW = WC = 10

Substitute 10 for SW and WC

2x + y = 10 --- (1)

x - 2y = 10 ---- (2)

Make x the subject in (2)

x = 10 + 2y

Substitute x = 10 + 2y in (1)

2(10 + 2y) + y = 10

20 + 4y + y = 10

20 + 5y = 10

Solve for 5y

5y = 10 - 20

5y = -10

Solve for y

y = -10/5

y = -2

Recall that x = 10 + 2y

x = 10 + 2(-2)

x = 10 -4

x= 6

3 0
3 years ago
7/9 - 5/6 - (-1/3) =
Tomtit [17]
Answer: 0.278. I did the math. Can I has brainliest..?
4 0
3 years ago
Assume abc=def. if ab=5, ac=9 and ef=7, what is the length of bc?​
horsena [70]

Answer:

bc=  7

Step-by-step explanation:

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3 years ago
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27
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4 years ago
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