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liubo4ka [24]
3 years ago
8

Is 2(6-3x+x equal to 2(3x)+x

Mathematics
1 answer:
makvit [3.9K]3 years ago
4 0

Answer:

no because 2(6-3x)+x equals 12-5x and 2(3x)+x equals 7x

Step-by-step explanation:

hope this helps

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a bag contains only a red and blue marbles there are a total of 36 marbles in the back there are five red marbles for every four
Harrizon [31]
Let R and B be the number of red and blue marbles respectively.

Then,
R+B = 36
R:B = 5:4

Therefore,
Ratio of red marbles = 5/9
Ratio of blue marbles = 4/9
This means,
R = 5/9*36 = 20 marbles
B = 4/9*36 = 16 marbles

If one blue marble is removed from the bag, the  new B= 16-1 = 15 blue marbles  and the new total of marbles in the bag = 36-1 = 35 marbles.
The new ratios are
R = 20/35 =4/7
B = 15/35 = 3/7
That is, R:B = 4:3

The reasoning of the student is wrong. When a marble is removed, both the number of blue marbles changes as well as the total of the marbles in the bag. In other words, both the values in the ratio reduce by 1.
7 0
3 years ago
DIVIDE. (4x4 - 8x3 + 4x - 8) / (4x - 8)
svetoff [14.1K]

Answer:

x³+1

Step-by-step explanation:

4x-8 | 4x⁴ - 8x³ + 4x - 8

       <u>_4x⁴ - 8x³______</u> <-- x³

                           4x - 8

      <u>                     4x - 8</u> <-- 1

                                  0 | x³+1

Therefore, (4x⁴-8x³+4x-8)/(4x-8) = x³+1

3 0
2 years ago
a walking path across a park is represented by the equation y=-4x-6. A new path will be built perpendicular to this path. The pa
loris [4]

Answer: C. y = (1/4)x -7

Step-by-step explanation:

6 0
3 years ago
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Natali5045456 [20]

Answer: Whats the user?

Step-by-step explanation:

4 0
2 years ago
From 12:00 to 6:00 a.m, the temperature decreased by 12°C. If the original temperature was 12°C, which expression can be used to
olchik [2.2K]

Answer:

A

Step-by-step explanation:

Temperature decreased by 12°C :   (-12°C)

Expression:

12 + (-12) = 12 - 12

3 0
3 years ago
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