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3 years ago

2(x - 4) + 2x = -6x – 2

Mathematics

2 answers:

monitta3 years ago

7 0

Answer:

x= 0.6

Step-by-step explanation:

professor190 [17]3 years ago

7 0

Answer:

$x = \frac{3}{5}$

Step-by-step explanation:

Apply the distributed property to 2(x - 4). It should now look like this: 2x - 8
Plug 2x - 8 in: 2x - 8 + 2x = -6x - 2
Combine like terms on the left side, so it now looks like this: 4x - 8 = -6x - 2
Combine like terms even further: 4x - -6x = 8 - 2
Simplify: 4x + 6x = 6
Start adding, so it now looks like this: 10x = 6
Divide each side by 10 to cancel out the 10 next to x. It should now look like this: x = 3/5

I hope this helps!

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Furkat [3]

Answer:

11 races

Step-by-step explanation:

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3 years ago

Read 2 more answers

Amy’s math notebook weighs ½ pound, her science notebook weighs ⅞ pound, and her history notebook weighs ¾ pound. What are the w

Basile [38]

Answer:

Math, History, Science

Step-by-step explanation:

Math notebook: $\frac{1}{2} = \frac{4}{8}$

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3 years ago

Please prove or explain how to get AC, CM, & CP... AC = 15 CM = 20 CP = 12

katovenus [111]

<h3>Explanation:</h3>

All of the right triangles are similar by AA similarity, so corresponding side lengths are proportional. The ratio of the long leg to the short leg is the same for the two smaller triangles, for example:

CP/AP = MP/CP

CP/9 = 16/CP . . . . . fill in the given numbers

CP² = 9·16 . . . . . . . multiply by 9·CP

CP = 3·4 = 12 . . . . . take the square root

Now, you can use the Pythagorean theorem to find AC and/or CM.

AC = √(9² +12²) = √225 = 15

CM = √(12² +16²) = √400 = 20

In summary, CP = 12, AC = 15, CM = 20.

_____

Once you have CM, you can see these are 3-4-5 right triangles, so you can determine the other lengths by using these side ratios.

3:4:5 = 9:12:15 = 12:16:20

_____

The altitude CP is called the "geometric mean" of AP and MP. It is the square root of their product. This is true for any right triangle, not just one with sides in the ratio 3:4:5. If you know this, you can write down your answers almost immediately. Above, we had to derive this fact using similarity.

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3 years ago

Solve for y +5=+5 Please help!

Amiraneli [1.4K]

Answer:y=10

Step-by-step explanation:

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2 years ago

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statuscvo [17]

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