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Evgen [1.6K]
3 years ago
5

4x+6-3x=8-2x The answer comes up wrong if I put .6 or .66666 or .6666667

Mathematics
2 answers:
Anettt [7]3 years ago
4 0
The answer would be x=2/3
muminat3 years ago
4 0

Answer:

Just put it in as a fraction 2/3.

Step-by-step explanation:

4x+6-3x=8-2x

x+6=8-2x

x+2x=8-6

3x=2

x=2/3

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Factor completely 56a2b3 − 35ab.
VMariaS [17]

I would start off by taking away 1a. That would make the problem be 56ab3-35b.I only took away 1 because each have at least 1a and is okay to do.


Next I would deal with the variable b. I would cross of 1 b. That's because both sides have at least 1b.  Now, it's shortened to be 56ab2-35.


Since you cannot take away anymore variables, you have to deal with 56 and 35. I start small with dividing each by 2. I am trying to see what the greatest number could be while making the numbers still be whole. That turns 56 into 28 when it's cut in half. The 35 now turns into 17.5.


I would assume your teacher would want the numbers to be whole. seeing as though when 35 is cut in half and makes a decimal number, I would leave them. What I mean by that is to leave the numbers as 56 and 35.


So, that means the answer is 56ab2-35.


I hope this helps!! (And makes sense)

5 0
3 years ago
Brandon has a points card for a movie theater. He receives 70 rewards points just for signing up. He earns 12.5 points for each
MariettaO [177]

Answer:

5 visits

Step-by-step explanation:

70 + 12.5 = 82.5 points

145 - 82.5 = 62.5

62.5 ÷ 12.5 = 5

5 visits.

3 0
3 years ago
Read 2 more answers
five friends went out to dinner. each paid 13.75 for the meal including a 7 percent sales tax. what was the total cost of meal b
Sphinxa [80]

Answer:


Step-by-step explanation:

86

8 0
3 years ago
Sum of rational Expression 9/xy + x^2/y
Ksenya-84 [330]
9/xy + x^2/y =  (9+x^3)/xy
4 0
3 years ago
A company's profit C (in thousands of dollars) can be modeled by the polynomial function C = - 5x ^ 3 + 6x ^ 2 + 15x , where x i
steposvetlana [31]

Answer:

849 items.

Step-by-step explanation:

Given that the profit C (in thousands of dollars) for x thousands of items related as

C = - 5x ^ 3 + 6x ^ 2 + 15x \\\\\Rightarrow -5x^3+6x^2+15x -C=0\cdots(i)

As the profit is $14,000 for producing 2000 items, so

C= 14 thousand dollars and

x= 2 thousand items.

Putting C= 14 in the equation ( we have),

-5x^3+6x^2+15x -14=0\cdots(ii)

Now, x=2 is one of the solutions to the equation (ii), so (x-2) is a factor of the equation (ii), we have

(x-2)(-5x^2-4x+7)=0 \\\\\Rightarrow x-2=2 \; or \; -5x^2-4x+7=0

We have the given solution for x-2=0, so sloving -5x^2-4x+7=0 for other solutions.

-5x^2-4x+7=0 \\\\\Rightarrow x= \frac {-(-4)\pm \sqrt {(-4)^2-4\times (-5)7}}{2\times (-5)} \\\\\Rightarrow x= \frac {4\pm \sqrt {156}}{2\times (-5)} \\\\\Rightarrow x= \frac {4\pm 12.49}{2\times (-5)} \\\\\Rightarrow x = \frac {4+ 12.49}{2\times (-5)}, \frac {4- 12.49}{2\times (-5)} \\\\\Rightarrow x = -1.649, 0.849

As the number of items cant be negative, so x= 0.849 thousand is the other number of items.

Hence, the other number of items for the same profit is 849 items.

4 0
3 years ago
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