Step-by-step explanation:
to find a common denominator, you have to find a number that "works" with every other number.
for example, say you have
2/4 and 8/12
First you need to find the common factor between 4 and 12, so list all your fours
4, 8, 12, 16, 20
Now list all your twelves
12, 24, 36, 48, 60
to find the common factor you look at both your list of numbers and find one that's the same, sometimes it takes a long list of numbers to find the common factor, but you will run into one.
So by looking at our list we see that 4 and 12 share the common factor of 12. but since 8/12 already has a denominator of 12, we are going to leave it alone.
now think about what you would multiply 4 by, to get to 12. The answer is
4 x 3 = 12
to make the numerator correct, you multiply it by the same number you did 4, so since your faction is 2/4 you should do 2 x 3 = 6
now you have your answer,
2/4 and 8/12 turns into
6/12 and 8/12
and that's how you find it, let me know if you have questions :)
(i) The percentage of students who got high scores in both the subjects English and Mathematics is 46%.
(ii) The total number of students who got high scores either in Mathematics or in English if 300 students had attended the exam exists 138.
<h3>What is probability?</h3>
The probability exists in the analysis of the possibilities of happening of an outcome, which exists acquired by the ratio between favorable cases and possible cases.
The number of students who got high scores in Mathematics was 75%.
The number of students who got high scores in English was 65%.
(i) The percentage of students who got high scores in both the subjects
100% - 6% = 94%
(75% + 65%) - 94%
= 140% - 94%
= 46%
Therefore, the percentage of students who got high scores in both the subjects English and Mathematics is 46%.
(ii) The total number of students who got high scores either in Mathematics or in English if 300 students had attended the exam
= 300 
46%
= 300 (46 / 100)
= 300 0.46
= 138.
Therefore, the total number of students who got high scores either in Mathematics or in English if 300 students had attended the exam exists 138.
To learn more about probability refer to:
brainly.com/question/13604758
#SPJ9
65 total test items were on the test.
Answer:
Bsjwkwkwkkenenrnrnrbtbbtbfbfnrntnt rnrnrkkrjrjr
Step-by-step explanation:
bdbrbrbr
You haven't provided the coordinates of the original trapezium, therefore, I can only help with the concept.
From the givens, we can know that the rotation was 90° counter-clockwise about the origin.
<u>The rule for this rotation is:</u>
(x , y) ..............> (-y , x)
This means that to get the points of the rotated image, negate the y-value then exchange it with the x-value
<u>Examples:</u>
(1 , 3) rotated 90° counter-clockwise about the origin will give (-3 , 1)
(-2 , 4) rotated 90° counter-clockwise about the origin will give (-4 , -2)
(1 , -2) rotated 90° counter-clockwise about the origin will give (2 , 1)
(-3 , -5) rotated 90° counter-clockwise about the origin will give (5 , -3)
Hope this helps :)
