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3 years ago

How do I do number nine?

Mathematics

2 answers:

Alex777 [14]3 years ago

8 0

Y = |x-6|
When the number is on the inside it moves left to right depending on the sign
If it’s positive it moves left if it’s negative it moves right
When the the number it’s on the outside the number moves up and down
It moves up when it’s positive and down when it’s negative

dedylja [7]3 years ago

3 0

I️ think you just do +6

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How many solutions are there to 3x-10(x+2) =13-7x

Vaselesa [24]

This is the following way to solve this problem:

3x-10(x+2)=13-7x

3x-10x-20=13-7x (multiply 10 times what's in the parentheses)

-7x-20=13-7x ( subtract 3x from -10x)

-7x-20-13=-7x ( since the 13 is positive, when we move it to the other

side, we change it's sign, so now we subtract 13 from 20

-7x-7=-7x

-7=-7x+7x ( we do the same thing we did above, now with the -7x)

-7=x

x=-7

Answer: x = -7

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3 years ago

Lawrence is half as old as Jonathan. The sum of their ages is 54. How old is Jonathan?

schepotkina [342]

Answer:

Jonathan is 36 years old.

Step-by-step explanation:

Jonathan=2 Lawrence

J= 2L

54 divided by 3 equals 18.

18 times 2 equals 36.

Hope this helped! :)

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3 years ago

Find the slope of the line on the graph.write your answer as a fraction or a whole number, not a mixed number

Leona [35]

Answer:

slope = $-\frac{1}{2}$ if it were in an

Step-by-step explanation:

the graph is a negative and will therefore have a negative slope. to find the slope, pick a point on the graph and find the $\frac{rise}{run}$ .

for instance, start with the point (0,1). Then go down 1 and left 2 to get to the next point on the graph (2,0). 1 is the "rise" and 2 is the "run" hence -1/2 being the slope.

you could also use the slope formula: $\frac{y_{2} -y_{1} }{x_{2} -x_{1} }$

point 1: (0,1) (x₁ ,y₁)

point 2: (2,0) (x₂ , y₂)

$\frac{0-1}{2-0} =-\frac{1}{2}$

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2 years ago

1) What can u do to get 2x alone on the left side?

CaHeK987 [17]

Answer:

82.5 - 82.5 + 2x = 338.5 - 82.5

2x = 256

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x = 128

Step-by-step explanation:

In order to get rid 82.5, you have to substract the same value on both side to get a 0 value.

In order to find the value of x, you have to divide the value that is sticked with x which is 2. As you divide 2 by 2, you will get 1 as a single value of x so you have to divide 2 to both side too.

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3 years ago

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Shtirlitz [24]

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