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Julli [10]
2 years ago
7

Emily chooses two numbers. She adds the two numbers together and divides the result by 2.

Mathematics
2 answers:
Colt1911 [192]2 years ago
7 0
(x+y)/2= 44

let x- 12

(12+y)/2= 44

12+y = 44*2

12+y= 88

y= 88-12

y= 76
Tomtit [17]2 years ago
4 0
Easiest way is algebra so
x+y are 2 numbers
if (x+y)/2=44
and x or y=12 (pic one)
so if x=12
subsitute
(12+y)/2=44
multiply both sdies by 2 to clear fraction
12+y=88
subtract 12 from both sides
y=76

the numbers are 12 and 76
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What’s the answer<br><br><br> 5n-2=n+18
Sauron [17]

5n-2=n+18

Move n to the other side

Sign changes from +n to -n

5n-n-2= n-n+18

5n-n-2= 18

4n-2= 18

Move -2 to the other side

Sign changes from -2 to +2

4n-2+2= 18+2

4n= 18+2

4n= 20

Divide by 4 for both sides

4n/4= 20/4

Answer: n=5

4 0
3 years ago
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1) A dog runs from one side of a park to the other. The park is 80.0 meters across. The dog takes 16.0 seconds to cross the park
irina1246 [14]
All you really have to do is divide 80.0 by 16.0 


80.0 divided by 16.0= 5


so 5 is your answer!
7 0
3 years ago
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Find the value of x.
astra-53 [7]

Answer:

10

Step-by-step explanation:

7x+5 = 9x -15

5 = 2x -15

2x = 20

x = 10

6 0
2 years ago
The midpoint of AB is M (-5,0). If the coordinates of A are (-3,3), what are the coordinates of B?
asambeis [7]

Answer:

(-7,-3)

Step-by-step explanation:

From A to M, the x value went down 2.  If it goes down another 2, it will be at -7.

From A to M, the y value went down 3.  If it goes down another 3, it will be at -3.

(-7,-3)

8 0
3 years ago
Alana practice dancing 11/4 hours on Monday 19/8 hours on Wednesday and 2.6 hours on Friday on which day did she practice the cl
liubo4ka [24]

Answer:

On Wednesday

Step-by-step explanation:

In this question, We have Alana practicing for three days. We now need to know in which of the days has she practiced closest to 2 hours. Hence, what we are to do here is simply find which of the practicing hours is nearest to 2hours.

The best thing to do here is to work with minutes. Hence whatsoever fraction we are having would be worked with based on minutes. Let’s do this!

On Monday, she practiced 11/4 hours. This means she practiced 11/4 * 60 minutes = 165 minutes

On Tuesday, practice was for 19/8 hours. This means she had practiced for 19/8 *60 = 142.5 minutes

Lastly, on Wednesday, her practice time was 2.6 hours and that is 2.6 * 60 = 156 minutes

Kindly note that 2 hours is same as 120 minutes. We just need to know which of these minutes is closest to 120 minutes. From what we have, 142.5 is the closest.

This means that her practice on Wednesday is the closest to two hours.

4 0
3 years ago
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