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vladimir2022 [97]
3 years ago
6

If the average of x,y and z is 15 what is their sum

Mathematics
1 answer:
kari74 [83]3 years ago
3 0

Answer:

I believe it is 45

Step-by-step explanation:

Because 15 is their average then you times by three.

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20 1/3 + x = -9 round your answer to the nearest hundredth
nadya68 [22]

Answer:

I would think it's X= -29 1/3

Step-by-step explanation:

You have 20 1/3 already, and to get to a negative when you have a positive number, to the positive you would need to add a larger negative. (If that makes any sense, it's hard to explain.) So you have to get rid of the 20 1/3 and you have to get to -9, so I would add a 9 to 20 1/3 to get 29 1/3, and make that number negative because then it will cancel the positive out. Making it -9.

3 0
3 years ago
Help! Solve for x !! Use picture below
creativ13 [48]

Answer:

x=7

Step-by-step explanation:

since it is the same side length,

3x+6 = 10x-43

3x-10x = -43-6

-7x = -49

x=-49/-7=7

please mark brainliest

7 0
3 years ago
Which of the following is the best first step in solving the equation below?
likoan [24]

im assuming you wrote 4logsx instead of 4log5x here

Answer is a) log5x = 7

Just diving both sides by 4 to isolate the log

4 0
3 years ago
What are the x-intercepts for the graph of y=3(x - 2)(x+6)?
WARRIOR [948]

Answer:

A

Step-by-step explanation:

Put Y=0

0 = 3(x - 2)(x + 6) \\

Now

x - 2 = 0 \\ x = 2 \\  \\  \\ x + 6 = 0 \\ x =  - 6 \\  \\

so A is right option

5 0
3 years ago
PLEASE HELP ME GRAPH THIS
spin [16.1K]

Answer:

\huge\boxed{(12,80),(10,65)}

Step-by-step explanation:

The line given has a slope of 7.5 and a point at (12, 80)

Because of the slope, simply subtract 2 from the x and subtract 15 from the y to get another point, at (10, 65)

Thus, simply put your points at (10, 65) and (12, 80)

Hope it helps and let me know if you want me to elaborate.

3 0
3 years ago
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