40%
1.35/2.25=.6
$1.35 is 60% of $2.25
100-60=40
Answer:
0.3913 = 39.13% probability that the student did not attend class regularly given that (s)he did not receive an above average grade
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Did not receive an above average grade.
Event B: Did not attend class regularly.
Probability of an student not receiving an above average grade:
100 - 40 = 60% of 70%(attend class regularly).
100 - 10 = 90% of 100 - 70 = 30%(do not attend class regularly).
So
Did not receive an above average grade and did not attend class regularly:
90% of 30%. So
Find the probability that the student did not attend class regularly given that (s)he did not receive an above average grade
0.3913 = 39.13% probability that the student did not attend class regularly given that (s)he did not receive an above average grade
50% of 20 is 10, 75% of 10 is 7.5. round up and you get 80%.
hope this helps you! :-)
Answer:
A. $100 rebate coupon.
Step-by-step explanation:
$100 dollars off of $479.99 would be $379.99, compared to the 20% off which would be $384.99
Calculating percentages isn't too hard:
Multiply the percent by the original cost.
20 x 479.99 which is 95.99
479.99 - 95.99 = 384
It is true that if you stand at street level, the angle of elevation to a building’s tenth-story window is greater than the angle of elevation to one of its ninth-story windows. This is because <span>the angle of elevation decreased with respect to the street level. I hope this helps!</span>