Step-by-step explanation:
If a variables varies jointly, we can just divide it by the other variables in relation to it.
For example, since p variables jointly as q and square of r, then

where k is a constant
First, let find k. Substitute p= 200
q= 2, and r=3.



Now, since we know our constant, let find p.

Q is 5, and r is 2.



Answer:
x - 4 means that the answer will be greater than 3 so the answer could probably, don't take me up on it but it, should be 4 but that is just what my questions answer was. Hope it helps!!!
Answer:
last one
Step-by-step explanation:
Answer:
= 84/177100
Step-by-step explanation:
Here 9 mid sized
16 compact cars
selected = 6
= 84/177100
for 3 mid sized
3 compact cars
then
3Cx/9Cx
divide by 3 we get
Cx/3Cxtaking Cx coomon
it become Cx =1/3 hence the probability is 1/3