Answer:
mini disc diameter:disc diameter
14cm:21cm = 7:10.5 = 3.5:5.25 = 1:1.5
Mike biked 10 miles in 1.5 hours. Mila bikes at the same rate too.
Therefore, she will bike x miles in 3.5 hours
(10/1.5) = (x/3.5)
You cross multiply
1.5x = 10 x 3.5
1.5x = 35
x = 35/1.5
x = 23 miles (approximately)
I hope this helps
If it si proportional
y/x=k or y=kx
if k is same throuout, then it is proportional
find their ratio
so
0/0=undefined, ignore
2/3=k
4/6=2/3=k
6/9=2/3=k
yes, proportional
y=kx
3=2k
1=2/3k
2/3 is answer
proprtional (2nd and 3rd)
graph is proprtional, first table is poroprtional
other ones are not
2nd picture is proportional, 3rd is not
(x,y), y is rise, x is run
unit rate is rise/run=15/6=5/2=2.5
unit rate is 2.5
unit rate is (1/2)/(2/5)=(1/2)(5/2)=5/4=1.25
unit rate is 1.25
Answer:
So the radius is increasing at .
This is approximately 0.00497 cm/min that the radius is increasing.
Step-by-step explanation:
The volume and radius are both things that are changing with respect to time.
So their derivatives will definitely not be 0.
Let's differentiate:
I had to use constant multiple rule and chain rule.
We are given and .
We want to find .
Let's plug in first:
Multiply both sides by 3:
Divide both sides by :
So the radius is increasing at .
This is approximately 0.00497 cm/min that the radius is increasing.