Answer:

Step-by-step explanation:
Probability refers to chance of happening of some event.
Conditional probability is the probability of an event A, given that another event B has already occurred.
denote the two boxes.
In box
:
No. of black balls = 1
No. of white balls = 1
In box
:
No. of black balls = 2
No. of white balls = 1
Let B, W denote black and white marble.
So, probability that either of the boxes
is chosen is 
Probability that a black ball is chosen from box
= 
Probability that a black ball is chosen from box 
To find:probability that the marble is black
Solution:
Probability that the marble is black = 
Answer:
Slope=0.10
Interpretation: For every minute Olivia is in the cafe she is getting charged 10 cents
Step-by-step explanation:
The slope is a constant followed by a variable (a,x,b,z,etc...) So the only constant with a variable after it was the 10.
Answer:
30 per hour
Step-by-step explanation:
you need to divide the crates by the hour
Answer:
rational numbers are real numbers that statement is true
Step-by-step explanation:
because all rational numbers are belong to real number ,
real number contain all type of numbers rational and real number.
-(4/5)*(3/7)*(15/16)*(-14/9) [two negatives make one positive]
=(4*3*15*14)/(5*7*16*9) [simplify 4/16]
=(3*15*14)/(5*7*4*9)
=(3*3*14)/(7*4*9)
=(14)/(7*4)
=(2)/(4)
=1/2