618+5400=6018
6018+(50+2500)=8568
8568-(47+2900)=5621
she has $5,621 in her account
Answer:
a) What is the probability that we will pick a blue ball?
there is a 50% chance that urn 1 will be selected and the possibility of a blue ball is 3/4 x 0.5 = 1.5/4
there is also a 50% chance that urn 2 will be selected and the possibility of a blue ball is 2/4 x 0.5 = 1/4
the probability of choosing a blue ball = 1.5/4 + 1/4 = 2.5/4 or 5/8
b) If we picked a blue ball, what is the probability that the selected urn was urn-1?
there are 5 blue balls in total, and 3 of them come from urn 1
c) Suppose we picked a blue ball. If we randomly pick one additional ball from the same urn, what is the probability that we pick a red ball?
there is a 50% chance that urn 1 will be selected, and the possibility of a red ball after a blue ball is 1/3 x 0.5 = 0.5/3
there is also a 50% chance that urn 2 will be selected and the possibility of a red ball after a blue ball is 2/3 x 0.5 = 1/3
the possibility of choosing a red ball after a blue ball = 0.5/3 + 1/3 = 1.5/3 = 1/2
Answer:
not my work but hope it helps
Step-by-step explanation:
and it works out gl bestiee
Answer:
Parallel
Step-by-step explanation:
y=x+6
y=x+4
--------
y=mx+b where m=slope.
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These 2 lines have same slopes, which means/indicates parallel lines.
Answer:
=10
=-7
=2.2
=60
Step-by-step explanation:
2x-6=14
2x=20
x=10
-5x+5= 40
-5x = 35
x= -7
10x + 2 = 24
10x = 22
x= 2.2
1/6x +1 = 11
1/6 x = 10
x = 60
HOPE IT'S HELPFUL.