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Likurg_2 [28]
2 years ago
11

Will give brainlst Have a nice day

Mathematics
1 answer:
Zarrin [17]2 years ago
5 0

Answer:

ok where are you from which country

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If x+y= 15, y+z=25, and x+z=20, what is the arithmetic mean of x,y, and z
Mama L [17]
X + y = 15
Rearrange this to isolate for x.
x = 15 - y


x + z = 20
Rearrange this to isolate for x also.
x = 20 - z

Since they are both equal to x, that means they are equal to each other (x = x)

Set them equal to each other. 

15 - y = 20 - z
Now, isolate for y.

y = 15 - 20 + z

Now, use y + z = 25 and isolate for y.
y = 25 - z

Since they are both equal to y, we set them equal to each other.

15 - 20 + z = 25 - z
Solve for z
z + z = 25 - 15 + 20
2z = 30
2z/2 = 30/z
z = 15

Now you can plug the value for z into the other equations to find y and x.

x + z = 20
x +15 = 20
x = 20-15
x = 5

y + z = 25
y + 15 = 25
y = 25 - 15
y = 10

6 0
3 years ago
Need help quick Picture provided proof problem
Doss [256]
Uhhh i dont know bsjsiw
7 0
3 years ago
4y= 3/4 i need helppppppp
Strike441 [17]

4y = \frac{3}{4} / :4\\y = \frac{3}{16}

7 0
2 years ago
It is about 1.62×10⁶ miles from Venus to Earth. It is about 5.4×10⁷ from Earth to Mars. How far is it total from Venus to Earth
Lubov Fominskaja [6]

Answer:

-5.238- 10^{7}

or

Since the exponent of the scientific notation is positive, move the decimal point  6  places to the right.

1620000

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

10 . If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Hope this helps :)

4 0
2 years ago
What is the sum of 506,211 and 424,809
Allushta [10]
506,211+424,809=931,020 sum means add hope this helps
6 0
3 years ago
Read 2 more answers
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