By definition of conditional probability,
P(B | A) = P(A ∩ B)/P(A) = (13/25) / (13/20) = 20/25 = 4/5
Answer:
24
Step-by-step explanation:
First, find the different of the two weights
d = 1,200 - 550
d = 650
The different of the weights is 650
Second, to find the percentage, we should compare the difference to the former weight. So we compare 650 to 1,200, then multiply it to 100%
percentage = 650/1,200 × 100%
percentage = (65,000/1,200) %
percentage = 51.17%
percentage = 51%
The percent of increase is 51%
Answer:
10/3 minutes
Step-by-step explanation:
12 minutes to run 6 times is the same as 2 minutes to run once (ratios)
so it takes 2 minutes to run once around a 600 m track
so 2 minutes/600m = x minutes/1000m
x = 2/600 * 1000 = 20/6 = 10/3
Answer:
$146.58
Step-by-step explanation:
Price of 1 notebook: $3.49
Price of 40 notebooks: 40 * $3.49 = $139.60
Sales tax is 5% of $139.60: 5% * $139.60 = 0.05 * $139.60 = $6.98
Price of 40 notebooks plus sales tax: $139.60 + $6.98 = $146.58
Answer: $146.58