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Evgesh-ka [11]
3 years ago
8

Please help me find the value of X

Mathematics
2 answers:
Katen [24]3 years ago
5 0

Answer:

D. 20

Step-by-step explanation:

if x = 20 then 3 x 20 + 10 = 70

and x = 20 so 70 + 20 = 90

and since this is a right angle, it all matches up :)

Ymorist [56]3 years ago
3 0

Answer:

Is this

Step-by-step explanation:

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0.5% of what number is 3
tatuchka [14]


0.5 / 100 * X = 3

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3 years ago
Find the solution of this system of equations<br> 4x - 5y = -12<br> -X + 5y = 18
Natalka [10]

4x - 5y = -12

-x + 5y = 18

Add the equations together:

4x + -x = 3x

-5y + 5y = 0

-12 + 18 = 6

So now you have:

3x = 6

Divide both sides by 3:

X = 2

Now you have the value of x, replace x with 2 in one of the equations and solve for y:

4(2) -5y = -12

8 -5y = -12

Subtract 8 from both sides:

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Divide both sides by -5:

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The solution is x = 2 and y = 4 which is written as (2,4)

7 0
3 years ago
What is the volume of this cone?
Katyanochek1 [597]

There is no image but I would likely be glad to help! :)

4 0
2 years ago
Terri played 70 tournament chess games during the school year and won 49 of them. What is her win-to-loss ratio?
Scilla [17]

Alright so the answer would be letter B, because

win-to-loss

49 to 21 (You can determine her losses by subtracted the number of wins from her total number of games played)

Now you must simplify your answer

7 is the greatest common factor (GCF) of both 49 and 21

Now divide both 49 and 21 by 7 to get

7 to 3

7 0
3 years ago
When 50​% of a number is added to the​ number, the result is 210. what is the number?
stellarik [79]
I hope this helps you

4 0
3 years ago
Read 2 more answers
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