Answer:
option a)
0.286
Step-by-step explanation:
Given that,
number of red pens in cup = 5
number of black pens in cup = 10
number of pen randomly selected = 3
There are 5 red pens and 10 black pens. So there are 5 + 10 = 15 pens in all.
probability of having all red pens = (5/15 x 4/14 x 3/13)
= 2/91
probability of having all black pens = (10/15 x 9/14 x 8/13)
= 24/91
probability that all pen are of same colour = 24/91 + 2/91
= 2/7
≈ 0.286
Here you go, hope it helps:)
Answer:
2. multiply 3/4 by 8
Step-by-step explanation:
3/4 ÷ 1/8
Copy dot flip
3/4 * 8/1
24/4
6
(y - yo) = m.(x - xo)
We have two points (-4, -1) and (1, 4)
(-1 - 4) = m.(-4 - 1)
(-5) = m.(-5)
m = (-5)/(-5)
m = 1
So the slope is 1
Answer: 
cups of pineapple juice .
Step-by-step explanation:
Equation of direct proportion between x and y:
As per given,
Let x = quantity of pineapple juice and y = quantity of orange juice.
, 
, 
Put these values in an equation we get
Hence, he needs cups of pineapple juice .
