8=p/7
Answer:
p=56
Step-by-step explanation:
multiply by 7 to get it out of denominator
Answer:gshshshsjsjjs
Step-by-step explanation:babanannnsns
a) The probability that the ball drawn is red is approximately 0.4615
b) If the ball drawn is red, the probability that it came from urn A is approximately 0.7222.
To calculate the probabilities, we can use the following formulas:
a) Probability of drawing a red ball (R):
P(R) = (Number of red balls) / (Total number of balls)
b) Probability that the ball came from urn A given that it is red (R|A):
P(R|A) = (Probability of drawing a red ball from urn A) / (Probability of drawing a red ball)
Let's calculate both probabilities:
a) Probability of drawing a red ball:
Total number of red balls = 5 (Urn A) + 4 (Urn B) + 3 (Urn C) = 12
Total number of balls = 5 (Urn A) + 7 (Urn A) + 4 (Urn B) + 3 (Urn B) + 3 (Urn C) + 4 (Urn C) = 26
P(R) = 12 / 26 ≈ 0.4615
b) Probability that the ball came from urn A given that it is red:
P(R|A) = (Probability of drawing a red ball from urn A) / (Probability of drawing a red ball)
P(R|A) = (5 / 12) / (12 / 26) = (5 / 12) * (26 / 12) ≈ 0.7222
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Answer:
1. 12/26, or simplified as 6/13, or about 46%.
2. 5/26, or about 19%.
Answer: j/2+7= the amount his brother has
Step-by-step explanation:
I'm going to do an example equation, so let's pretend j=30
Step 1: Divide the jelly beans in half (by 2)
30/2=15
Step 2: So now they each have 15 jellybeans, but if Jarrett gives his brother 7 jellybeans...
15+7= 22
Answer:
Step-by-step explanation:
j = jelly beans
Jarrett splits his bag of j jelly beans into two equal piles
so now we have two equal piles of the jelly beans
½j and ½j
and gives one pile to his brother
so right now the brother has
½j
He then gives his brother seven more beans
we add 7 to our equation and now
this is the algebraic expression that represents the number of beans the brother has:
Is Joseph’s estimate a close estimate, an underestimate, or an overestimate?
The mountain is 307.26 meters tall.
Step-by-step explanation:
Given,
Distance jogged by Madelyn = 190.5 meters
This represents 62 percent of total height of mountain.
Let,
x be the height of mountain.
62% of x = 190.5
Dividing both sides by 0.62
Rounding off to 2 decimal places
x = 307.26 meters
The mountain is 307.26 meters tall.
Keywords: division, percentage
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