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IceJOKER [234]
1 year ago
8

During a school event, there were 8 times as many pupils as teachers and there were three times as many boys as girls. There wer

e 70 fewer teachers than boys. How many people were there at the school event?
Mathematics
1 answer:
Lilit [14]1 year ago
3 0
We know that pupils are students

Students = S
boys = B
Teachers = T

So....

S = 8T
Boys = 3G
T = B - 70

Since there is 8x students than teachers, I did Boys = 6x and girls = 2x

I'm going to use this next: S = 8T

8x = 8(B -70)

8x = 8(6x - 70)

8x = 4x - 560

x = 14

We know there is 8x students, so there are 112 students and we know that there is 1/8 of teachers, so there are 14 teachers.

Answer = 126.
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Anvisha [2.4K]

Answer:

I think it's like this

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Description: coffee........ gunguli .

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-karen riche at the French National institute of medical research ,whose work appears in journal neurology

who is the audience?

-7000 men's and women's in the three french cities.

what kind of decision one should make after reading this article?

reading the above article I came to acknowledge that women are only benefited as they don't metabolizes coffee in same way as men.so men should take more care and control over their coffee consumption than women.

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(in here write whole sentence I just did in short cut)

8 0
3 years ago
Allentown got 2 feet less than twice the amount of snow Georgetown got . Allentown got 3 feet more snow than Georgetown. How man
Mandarinka [93]


x=2y-2

x=y+3

Substitute the second equation into the first

y+3=2y-2

solve for y

y=5

plug into original

x=y+3=5+3=8 or x=2(5)-2=8

Allentown got 8 ft of snow, Georgetown got 5 ft of snow.

4 0
3 years ago
Read 2 more answers
What is the number of possible combinations of 14 objects taken 3 at a time?
maria [59]

Answer:

364.

Step-by-step explanation:

14C3 = 14! / 11! 3! which simplifies to:

14*13*12 /3*2*1

= 14*13* 2

= 364.

6 0
3 years ago
Please help if u get all 3 right ill put u as brainiest​!
scoray [572]

Answer: 13

Step-by-step explanation: Alright with the median you take all the numbers "11, 20, 17, 8, 8, 9, 20, 13, 21" and put them in numerical order. "8, 8, 9, 11, 13, 17, 20, 20, 21" Then the middle one is the median, since there are 9 numbers you take the fifth one. In this case it is 13. (Only knew the first one since I have no idea what they mean by quartiles)

7 0
2 years ago
Mike is working on solving the exponential equation 37x = 12; however, he is not quite sure where to start. Using complete sente
Oksana_A [137]
Mike would first have to divid 37 from 12 and he would then find x
7 0
3 years ago
Read 2 more answers
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