Answer: mean is 13.5 and median is 7
Step-by-step explanation:
to get median you do (7+7)/2 and get 7 and for the mean you just add all of the numbers and divide by how many numbers there are. Basically it is 81/6 to get 13.5
72's factors is doubled the factors of 36.
First question:
Reduce the ratio
150 ml
------------
0.3 l
Do this by use of the appropriate conversion factor:
150 ml 1 liter 150 liter
------------ * ------------ = ------------- = 0.5 liter.
0.3 l 1000 ml 300
Darren drinks more milk: 0.5 liter versus Randy's 0.3 liter.
So we set it up like beofre
c=number of calzones
s=number of slices
total of 59 so
c+s=59
total money was 456
9c+6s=456
we can divide both sides by 3 to simplify
3c+2s=152
use subsitution
c+s=59
minus s both sides
c=59-s
subsitute 59-s for c in other equation
3c+2s=152
3(59-s)+2s=152
177-3s+2s=152
177-s=152
minus 177 both sides
-s=-25
s=25
sub back
c=59-s
c=59-25
c=34
34 calzones
25 slices
15 4/5 is 15.8. The word "of" means to multiply, and of course we have to change that percent into a decimal to use it in an equation. .158 × 50 = x is our equation. Doing the multiplication on the left will give us our x. x = 7.9, D from above.