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zimovet [89]
3 years ago
9

Rewrite the linear function x + 4y = – 12 in slope-intercept form.

Mathematics
1 answer:
Darya [45]3 years ago
3 0

Answer:

Step-by-step explanation:

slope intercept form is y = mx + b

x + 4y = -12.....subtract x from both sides

4y = -12 - x....divide both sides by 4

y = (-12/4) - x/4.....rearrange and reduce

y = -x/4 - 3......or can also be : y = -1/4x - 3 <==

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ahrayia [7]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
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The length of each edge of a cube is decreased by 40 percent By what percent does the volume of the cube decrease? Express your
lora16 [44]

Answer:

78% (to the nearest tenth)

Step-by-step explanation:

Volume of a cube = (length )³

Let the length of the cube = y

Original volume = y³

if the length is decreased by 40%, then new length = 1- (40% of y)

                                                                                     = 1-0.4y

                                                                                     =  0.6%

New volume (after decreasing the length) = (0.6y)³

                                                                      =  0.216‬‬y³

% Volume decrease = (Original volume - New volume)/Original Volume x 100%

                                 =  (y³ - 0.216‬‬y³)/ y³  x 100%

                                 = 0.784y³/y³  x 100%

                                 =78.4%

                                ≈78%

5 0
3 years ago
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loris [4]

Answer:

20 games

Step-by-step explanation:

Let

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Find out how many games represent a percentage of 100%

\frac{12}{60\%}=\frac{x}{100\%}\\\\x=12(100)/60\\\\x=20\ games

4 0
3 years ago
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Ralph is 3 times as old as Sara. In 6 years, Ralph will be only twice as old as Sara will be then. Find Ralph's age now.
laila [671]
I think it would be the 3rd one if not im sorry i tried

5 0
3 years ago
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Use the graph to evaluate the function.<br> f(-5) =<br> y<br> -8 -6
DENIUS [597]

Answer:

-4

Step-by-step explanation:

Go to x value of -5 and go down until you touch line.

3 0
3 years ago
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