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lions [1.4K]
1 year ago
6

Someone pls help i need help with my math question

Mathematics
1 answer:
11111nata11111 [884]1 year ago
6 0

Answer:

21 units

Step-by-step explanation:

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A committee must be formed with 5 teachers and 4 students. If there are 6 teachers to choose from, and 15 students, how many dif
ZanzabumX [31]

Answer:

8190 ways

Step-by-step explanation:

Given

Teachers = 6

Students = 15

Selection

Students = 4

Teachers = 5

Required

Number of ways of selection

4 students can be selected from 15 students in:

Students= ^{15}C_4

Similarly.

5 teachers can be selected from 6 teachers in:

Teachers= ^{6}C_5

So, the required number of selection is:

Selection = ^{15}C_4 * ^6C_5

Apply combination formula:

Selection = \frac{15!}{(15-4)!4!} * \frac{6!}{(6-5)!5!}

Selection = \frac{15!}{11!4!} * \frac{6!}{1!5!}

Selection = \frac{15*14*13*12*11!}{11!*4*3*2*1} * \frac{6*5!}{1*5!}

Selection = \frac{15*14*13*12}{4*3*2*1} * \frac{6}{1}

Selection = \frac{32760}{24} * 6

Selection = 1365 * 6

Selection = 8190

8 0
2 years ago
Please answer asap!!!!
galina1969 [7]

Answer:

B. 126 degrees

Step-by-step explanation:

lets say the angle is x

the equation we have here is the 8th graders divided by the total number of students is equal to x divided by 360 degrees since a circle has a 360 degree angle.

The equation is:

350/1000=x/360

in number form.

350/1000= 0.35 = 35%

so now we know x/360=35%

126/360=35%

so the answer would be 126 degrees.

<em>Hope that was helpful, if it was please rate it for anyone else who is asking the same question.</em>

4 0
2 years ago
Solve for x. x÷(-2)=1.4​
nignag [31]

Answer:

x=-2.8

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
The manager of a grocery store wants to determine the average amount of money spent at his store as it compares to the average d
oksian1 [2.3K]

part a: $37.60

idk part b

4 0
3 years ago
Someone help me on question 10 please!
Crazy boy [7]

Answer:

Step-by-step explanation:

500÷9=55.56miles/h (correct to 3 decimal places)

7 0
2 years ago
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