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erma4kov [3.2K]
3 years ago
10

The number of students in the period 7 study hall at jins school is 4 times the number of students in Jin’s home room how many s

tudents are in the study hall if there are 16 students in Jin’s home room
Mathematics
2 answers:
TiliK225 [7]3 years ago
8 0
She has 16 students in her home room
The study hall is 4 times as many

4*16 = 64
There must be 64 students in the study hall. 
Vlada [557]3 years ago
4 0
I think it's 64. Not positive, but pretty sure it is. 
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HELP ME ON THIS PLEASE!!!! SHOW WORK!!!!
Mumz [18]

Answer:

<h2>1. x = 4</h2><h2>2. x = 20</h2>

Step-by-step explanation:

1.

ΔABC and ΔAJK are similar (AA). Therefore the sides are in proportion:

\dfrac{AC}{AJ}=\dfrac{AB}{AK}

We have:

AC = 1 + 4 = 5

AJ = 1

AB = 1 + x

AK = 1

Substitute:

\dfrac{5}{1}=\dfrac{1+x}{1}

5=1+x           <em>subtract 1 from both sides</em>

4=x\to x=4

2.

ΔVUT and ΔVMN are similar (AA). Therefore the sides are in proportion:

\dfrac{VU}{VM}=\dfrac{VT}{VN}

We hve:

VU = x + 8

VM = x

VT = 49

VN = 49 - 14 = 35

Substitute:

\dfrac{x+8}{x}=\dfrac{49}{35}              <em>cross multiply</em>

35(x+8)=49x          <em>use the distributive property a(c + b) = ab + ac</em>

35x+280=49x              <em>subtract 35x from both sides</em>

280=14x         <em>divide both sides by 14</em>

20=x\to x=20

3 0
3 years ago
Find the midpoint of the line segment joining the points (7,1) and (-1,-1)
chubhunter [2.5K]
= x1 + x2/2 , y1 + y2/2
= 7+-1/2 , 1+(-1)/2
Midpoint = (3,0)
6 0
2 years ago
What is Number 13 plss I need answer ASAP
Sergeu [11.5K]

Answer:

Step-by-step explanation:

As you can see, she bought 8 muffins and 2 of them were apple, and the other 2 were banana.

( The rest were blueberry )

Since her family ate the APPLE and BANANA muffins, it's asking you to find the FRACTION of the muffins they ate. So 4 banana and apple muffins outta 3 varieties ( Total 8 muffins )  and 4 blueberry left.

So it's like 4 outta 8

idk I think im wrong :,U

3 0
3 years ago
What is 6.7086 rounded to the nearest tenth
padilas [110]
Hello!

Decimals used to confuse me a lot! :D 

When a question asks to round the decimal to the "nearest tenth", it simply means to round it to one decimal place.

6.7086 would be rounded to 6.7 if we round it to the nearest tenth. See, the 7 is in one place after the decimal point. 

The best way to understand decimal places, in my opinion, is to search up a tenths, hundredths, thousandths, etc. chart. Hope this gave you a better understanding of decimal places!


8 0
3 years ago
In a race, a triathlete runs 1/3 of the total distance, cycles 2/5 of the total distance, and swims the remaining distance. He s
liraira [26]
4500 meters. You find this by adding 1/3 and 2/5 which equals 11/15. This means that the remaining 4/15 is 1200 meters long. Divide 1200 by 4 in order to find the distance per 1/15 and you get 300. Multiply 300 with 15 to get the total distance of the race.
5 0
3 years ago
Read 2 more answers
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