Given:
It is given that
C divides AB so that, AC:AB = 3:8
To find the wrong option among the given options.
Let us take,
AB = unit
AC = unit
So,
CB =
CB = unit
So, we can conclude that,
AC: CB: AB = 3:5:8
Hence,
The wrong option is C i.e, Point C is of way from point A to point B.
The mean score (rounded to 2 DP) in the Math's test for class B is 86.86.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Class A has 15 pupils and class B has 29 pupils. The mean score for class A is 55. Hence:
Mean score of A = (sum of all scores) / 15
55 = (sum of all scores) / 15
sum of all scores in A = 825
The mean score for both classes is 76. Hence:
[(sum of all scores in A) + (sum of all scores in B)]/(total number of pupils) = mean score of both classes
[825 + (sum of all scores in B)]/(15 + 29) = 76
sum of all scores in B = 2519
Mean score of B = (2519) / 29 = 86.86
The mean score (rounded to 2 DP) in the Math's test for class B is 86.86.
Find out more on equation at: brainly.com/question/13763238
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-7/10 divided by 2/5 is -35/20 or -7/4 in the simplest form
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-3 1/3 or -10/3 times by -2 7/10 or -27/10 is 270/30 or 9
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Sales tax rate = 43.70-40
=3.7 the answer is 3.7$