Let the marks of the students in class 1 be
the average of these 12 marks is 90, so
which means
similarly, let
be the marks of the students in the second class,
so
which means
The 32 students averaged:
Answer:
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First we need to have same units before comparing them. That is, either both of them are in cm or both of them are in mm. So if we need to convert 12.5 cm to mm, we know that 1 cm =10 mm. So we have to find out how many mm are in 12.5 cm. And let 12.5 cm =x mm. So to find the value of x , we set a proportion and solve for x. That is
The units cancel out and we do cross multiplication. That is
x=125
So 12.5 cm =125 mm. Therefore the correct proportion is C.
9514 1404 393
Answer:
6/2
Step-by-step explanation:
The slope is given by ...
slope = (y2 -y1)/(x2 -x1)
slope = (13 -7)/(4 -2) = 6/2
__
The value of the slope can be simplified to ...
slope = 3
81 divided by 37.5 equals 2.16, 2.16 would be equivalent to 1% so to find 100% we simbly multiply 2.16 by 100, 2.16 multiplied by 100 equates to 216, so the Baker is making 216 muffins.
If this is a word problem, put it into your own words in case of getting in trouble.
I hope this helped, have an awesome day!!
(brainliest is always appreciated)