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raketka [301]
3 years ago
9

Is x+y=10 a direct variation?

Mathematics
2 answers:
weqwewe [10]3 years ago
7 0
Yes, x+y could possibly be a direct variation, but in order to determine that correctly, we need a second equation. 

If y varies directly with x, then it IS a direct variation. 
arlik [135]3 years ago
5 0
✡ Answer: True (yes) <span>✡

- -Why?

Because we can determine its a direct variation just based upon the x and y.

</span>✡Hope this helps<span>✡</span>
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Can someone solve 5 + 2x = + 6<br><br> and n - 3n = 14 - 4n<br><br> and 7 ( 5a - 4 ) - 1 = 14 - 8a
professor190 [17]

Answer:

5 + 2x = 6

2x = 6-5

2x = 1

x = 0.5

n -3n = 14 -4n

-2n = 14-4n (since 4n is negative, change the sign to make it positive and then add 4n to both sides of the equation)

2n = 14

n = 7

7 (5a - 4) - 1 = 14 - 8a

35a - 28 - 1 = 14 -8a

35a -29 = 14 - 8a

43a = 43

a = 1

6 0
2 years ago
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Question 8 (2 points)<br> 15 is 25% of<br> Brank 1:<br> HELPPP MEEE
Ilya [14]

Answer:

15 is 25% of 60

Step-by-step explanation:

15 x 4 = 60

25% x 4 = 100%

3 0
2 years ago
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FREE BRAINLIEST!!!!!!
vivado [14]

Let's solve the first inequality at first. So,

−2(x + 4) + 10 < x − 7

-2x- 8 + 10 < x - 7 By distribution property.

-2x + 2 < x - 7 Adding the like terms.

-2x < x - 7 - 2 Subtract 2 from each sides.

-2x < x - 9 By simplifying.

-2x - x < -9 Subtract x from each sides.

-3x < -9

-\frac{3x}{3}

Since we are dividing by negative 3. So, sign of inequality will get change.

So, x>3

Now the next inequality is,

−2x + 9 > 3(x + 8)

-2x + 9 > 3x + 24

-2x > 3x + 24 - 9

-2x > 3x + 15

-2x - 3x > 15

-5x >15

-\frac{5x}{-5} >\frac{15}{-5}

So, x <-3

Hence, the correct choice is x > 3 or x < −3.

7 0
3 years ago
- Do two points always, sometimes, or never determine a line? Explain
White raven [17]

Answer:

Always

Step-by-step explanation:

if two points lie in a plane, then the entire line containing those points lies in that plane

8 0
3 years ago
What is the answer to <br> a/-2 = 8
WARRIOR [948]

Answer:

-16

Step-by-step explanation:

a/-2=8

you multiply -2 on both side a/-2(-2)=8(-2)

-2 cancels out one the one side

your final answer is a= -16

3 0
3 years ago
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