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lions [1.4K]
2 years ago
8

in a random School sampling of 50 middle school students it was found that 18 students bring their lunch to school everyday if t

here are 942 students in the school predict how many bring their lunch to school each day​
Mathematics
1 answer:
dem82 [27]2 years ago
5 0

Answer:

340

Step-by-step explanation:

We can see in the sample that 18/50 people bring lunches to school. If we divide 18 by 50 we get 0.36 now we know that 36% of people bring their lunches in the sample. Now we take that number and multiply it by 942.

0.36*942= 339.12 which we can round to 340

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What is the solution to 2/3(9x-6)=4(x+2)+ 2 round to the nearest hundredth
ipn [44]

Answer:

7

Step-by-step explanation:

First expand 2/3 (9x-6) = 4 (x+2)+ 2 By doing 2/3 (9x - 6)/3

Which gives you 2/3 (9x - 6)

Then you factor it 2/3 (9x - 6) 6 (3x - 2) get 6 (3x - 2) / 3

then you divide 6/3 with 2

Getting 2 (3x - 2)

The use the distributive law

2 x 3x - 2 x 2

simplify the equation

6x - 4

expand 4 (x +2) + 2:   4x + 10

which then equals 6x-4=4x+10

add 4 to both sides

6x-4+4=4x+10+4

simplify

6x=4x+14

subtract 4x from both sides

simplify again

2x=14

divide both sides by 2

2x/2 = 14/2

simplify one last time and get the answer

x=7

8 0
2 years ago
What is the prime factorization for 900 i just need the answer i got to turn in in like 2 minute ​
Tomtit [17]

Answer:

Factors (2 x 2 x 3 x 3 x 5 x 5 = 900). It can also be written in exponential form as 22 x 32 x 52.

Step-by-step explanation:

4 0
3 years ago
A student government has 5 positions to fill and there are 9 candidates running for any one of the positions. How many different
LenKa [72]

Answer:B. 15,120 is the answer

6 0
3 years ago
What is the difference of 1/5 - 3/4
stira [4]

Answer:

1/5 and 3/4 difference is —

-11/20

7 0
3 years ago
An office has 30 computers. seventeen of the 30 are macintosh, and the remaining thirteen are windows. two computers are randoml
Aleks04 [339]

Given the first was Windows, we're choosing the second from 17 macs and 12 Windows, so


p = \dfrac{17}{17+12} = \dfrac{17}{29}



6 0
2 years ago
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