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Julli [10]
3 years ago
6

A survey was done to determine the effect of students changing answers while taking a​ multiple-choice test on which there is on

ly one correct answer for each question. Some students erase their initial choice and replace it with another. It turned out that 65​% of the changes were from incorrect answers to correct and that 29​% were from correct to incorrect. What percent of changes were from incorrect to​ incorrect?
Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0

Answer:

6% of the changes were from incorrect to​ incorrect

Step-by-step explanation:

The sum of the percentages must be 100%.

We have these following percentages

65​% of the changes were from incorrect answers to correct

29​% were from correct to incorrect

P% were from incorrect to incorrect

So

65 + 29 + P = 100

P = 100 - 94

P = 6

6% of the changes were from incorrect to​ incorrect

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Alla [95]

Answer:

Step-by-step explanation:

7 0
3 years ago
Cual de estos utiliza la propiedad distributiva para mostrar la forma expandida de la expresion: -4 . (-5 + 3)
mr Goodwill [35]

Respuesta:

8

Explicación paso a paso:

Si A, B y C son números enteros, según la propiedad distributiva;

A (B + C) = AB + AC

tenga en cuenta que A se distribuyó sobre B y C

Aplicando esto para expandir la expresión dada -4. (-5 + 3)

-4. (-5 + 3)

= -4 (-5) + -4 (3)

= 20 + (-12)

= 20 - 12

= 8

Por lo tanto, la respuesta requerida es 8

3 0
3 years ago
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Step-by-step explanation:

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3 0
3 years ago
1/5 of the beads in a jar are purple. Karen plans to use the purple beads to make 6 necklaces. If she used the same number of pu
ira [324]

Answer:

Im late and I could be wrong but is it 3/100?

Step-by-step explanation:

8 0
3 years ago
Are the fractions 1/5 , 5/5 , and 5/1 equivalent?Explain.
Debora [2.8K]
No, these equations are not equivalent. 

1/5, or one fifth, is part of a whole. Imagine you have a pie, cut into five pieces, and your friend comes over and eats four pieces, so now you have one of the five original pieces. That's what you have here. 

5/5, or five fifths, is a whole. any number divided by itself is automatically one, so it is like making another pie and cutting it into five pieces, only this time no one eats any of it because it's burned or something. At the end, you have five pieces of pie

5/1 is actually just another way of writing plain old 5. To keep the pie example rolling, you have five pies, and no one eats any of these either, so they are all yours. You have 5 pies divided between one person, so at the end of the day you have 5 whole pies. 

Hope that helped!
7 0
3 years ago
Read 2 more answers
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