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Len [333]
3 years ago
5

4) Solve for x: 4(2x - 10) = 12x + 10

Mathematics
2 answers:
Lera25 [3.4K]3 years ago
8 0

Answer:

x=-25/2

Step-by-step explanation:

ipn [44]3 years ago
4 0
<h3>Answer:</h3>

x =  -  \frac{25}{2}

Alternative forms:

x =  - 12 \frac{1}{2}, \: or \: x =  - 12.5

<h3>Step-by-step explanation:</h3>

4(2x - 10) = 12x + 10 \\ first \: you \: need \: to \: distribute \\  \\ 8x - 40 = 12x + 10 \\ subtract \: 12x \: from \: both \: sides \\  \\  - 4x - 40 = 10 \\ add \: 40 \: from \: both \: sides \\  \\  - 4x = 50 \\ divide \: both \: sides \: by \:  - 4 \\  \\ x =  -  \frac{25}{2}

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Step-by-step explanation:

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2 years ago
In how many ways can you spell the word ROOM in the grid below? You can start on any letter R, then on each step you can step on
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Answer:

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Step-by-step explanation:

In a straight line, the word can only be spelled on the diagonals, and there are only two diagonals in each direction that have 2 O's.

If 90° and reflex turns are allowed, then the number substantially increases.

Corner R: can only go to the adjacent diagonal O, and from there to one other O, then to any of the 3 M's, for a total of 3 paths.

2nd R from the left: can go to either of two O's, one of which is the same corner O as above. So it has the same 3 paths. The center O can go to any of 4 Os that are adjacent to an M, for a total of 10 more paths. That's 13 paths from the 2nd R.

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2 years ago
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