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AVprozaik [17]
3 years ago
15

What number would you multiply (6x-y+4) by so that the result is an equivalent expression to (3x+9x)-(2y-8) Be sure to enter you

r answer as a number.
Mathematics
2 answers:
frozen [14]3 years ago
3 0

Answer:

2

Step-by-step explana

 (6x-y+4)*2= 12x -2y+8= (3x+9x)-(2y-8)

balu736 [363]3 years ago
3 0
The answer would be 2
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To function properly, a rainwater outflow pipe must drop 1 inch every 25 inches of horizontal distance. A 40 feet long rainwater
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3 years ago
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The cost in dollars to print n books is 500 + 10n. How many books are printed for a cost of $15 000?
12345 [234]
N= the # of books
So you're trying to find n and you have the cost for the printed books, which is 15,000, so you would set up your equation like this:
15,000=500+10n 
Subtract 500 from each side
14850=10n 
Divide by 10
n=1,485 books are printed
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Answer:

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3 years ago
The relationship shown is linear. Write the equation of the line in slope intercept form (y=mx+b).
slega [8]

Answer:

y=mx+b                Example:

Graph the equation

y−2x=1

rewrite in slope-intercept form

y=2x+1

Identify the slope and the y-intercept

m = 2 and b = 1

Plot the point corresponding to the y-intercept, (0,1)

picture23

The m-value, the slope, tells us that for each step to the right on the x-axis we move 2 steps upwards on the y-axis (since m = 2)

picture24

And once you have your second point you can just draw a line through the two points and extend it in both directions.

picture25

You can check to see that the line you've drawn is the correct one by substituting the coordinates of the second point into the original equation. If the equation holds true than the second point is correct.

Our second point = (1, 3)

y−2x=1

3−2⋅1=3−2=1

Our second point is a solution to the equation i.e. the line we drew is correct.

A line that passes through the origin has a y-intersect of zero, b = 0, and represents a direct variation.

y=mx

In a direct variation the nonzero number m is called the constant of variation.

You can name a function, f by using the function notion

f(x)=mx+b

f(x) is another name for y and is read as "the value of f at x" or "f of x". You can use other letters than f to name functions.

A group of functions that have similar characteristics are called a family of functions. All functions that can be written on the form f(x) = mx + b belong to the family of linear functions.

The most basic function in a family of functions is called the parent function. The parent function of all linear functions is

f(x)=x

Step-by-step explanation:

5 0
3 years ago
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