8:5:3
8 blue marbles to 5 red marbles to 3 green marbles
There are 3 green marbles because the total of 16 marbles minus the blue and red marbles leave 3 marbles left.
The length of the rectangle is = 72 cm
The width of the rectangle is = 56 cm
Area of the rectangle is = 
=
cm²
As given, the other rectangle has the same area as this one, but its width is 21 cm.
Let the length here be = x


Hence, length is 192 cm.
We can see that as width decreases, the length increases if area is constant and when length decreases then width increases if area is constant.
So, in the new rectangle,constant of variation=k is given by,
or 
Hence, the constant of variation is 
I do believe it's 273,972 years.
Hello :)
Each car would contain 4 people. We can find this answer by dividing 60 by 15
60÷15= 4
So, again, there would be 4 people in each car. Hope this helps
(3.6,7) is a point on the function... x=3.6, y= 7
for the second part, find the slope of the line from (3.6, 7) to (3.58, 7.02).That's the derivative at x=3.6