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Veronika [31]
3 years ago
14

50 POINTS !! PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.

Mathematics
1 answer:
iVinArrow [24]3 years ago
7 0

Answer:

Correct answer is 8.2

I see 5 points instead of 50 pointssssss

Give 50, otherwise I will report u

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Joanie watched 1 out of three of a movie in the morning
Archy [21]

Answer:

7/15

Step-by-step explanation:

Determine how much she has watched.

1/3 + 1/5 The common denominator of 3 and 5 is 15. Multiply each fraction by an amount that will make the denominator 15

1/3 = 1*5/(3*5) = 5 / 15

1/5 = 1*3 / (5*3) = 3/15

Now add the two fractions together.

5/15 + 3/15 = 8/15

What is left of the movie? The whole movie = 1 so that which is left is

1 - 8/15

15/15 - 8/15

7 / 15

She has just a bit under 1/2 to go.

8 0
3 years ago
Factor completely 2x3 + x2 - 18x – 9.
lys-0071 [83]
2x^3+x^2-18x-9=x^2(2x+1)-9(2x+1)\\\\=(2x+1)(x^2-9)=(2x+1)(x^2-3^2)\\\\=(2x+1)(x-3)(x+3)
6 0
3 years ago
Read 2 more answers
(-3)(+4)=?<br> Can someone tell me the answer to this?
slava [35]

Answer:

-12, or 1 (see explanation)

Step-by-step explanation:

(-3)(+4)

Is the same as

4 * (-3)

which is

-12

Unless your problem is:

(-3) + 4

Then it is the same as

4 - 3

which is

1

5 0
3 years ago
I need help on this specific equation: 10x+1=3x+9
Yuri [45]
Well, first you'd have to get the x by it's self.
10x+1=3x+9
Subtract 3x from each side and you'll have the x on only one side rather than two.
7x+1=9
Now I'd get rid of the 1 on the x's side. So just subtract 1 from each side.
7x=8
Then you should make it so the seven isn't there with the x either. Just divide each side by 7.
Answer:  x=8/7
Each time you change something on one side, you must do the same to the other side. T find the value of a variable in an equation, simple seclude it so it's on it's own without number to make things confusing.
The answer was x=8/7 btw.
3 0
3 years ago
Read 2 more answers
The table shows the heights y (in centimeters) of a plant after x weeks. How many centimeters does the plant grow in one week?
mart [117]

Answer:

29/6 = 4.83.. or 4.8

4 0
2 years ago
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