Answer:
Step-by-step explanation:
The total number of ways of selecting 3 gems of any kind without replacement is 35 * 34 * 33 = 39270
Now selecting 2 gems from 25 is 25C2
25 C 2 = 25 * 24/2 = 300
Selecting one good gem is 10
Total selection = 300 * 10 = 3000
P(gems) = 3000 / 39270
P(gems) = 300/3927
P(gems) = 100/1309
Answer:
(-1,2) , (2,-1), (2,-1) , (-2,1)
Step-by-step explanation:
-5 x 0.2=-1
5 x 0.2=1
10 x 0.2= 2
-10x 0.2=-2
Answer:
x=-4.36
Step-by-step explanation:
Your proportion should look something like this

After cross multiplication, you should end up with this equation

After dividing 4 on both sides, you should get that x=9
Answer: 1x = $8.06y
Step-by-step explanation:
thats honestly all i know..