X= 270
simplify the equation using cross multiplication
The probability that the marble taken out is yellow is 1/4
Step-by-step explanation:
Total marbles = 12
Yellow marbles = 3
Probability that the marble taken out is yellow= No of yellow marbles/total marbles.
Probability that the marble taken out is yellow= 3/12
Probability that the marble taken out is yellow= 1/4
So, the Probability that the marble taken out is yellow is 1/4
Keywords: Probability
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Answer:
Step-by-step explanation:
Let he speed of the boat on the lake is x.
<u>Considering the speed of the current it will take him:</u>
- 22.5/(x + 6) + 22.5/(x - 6) = 9
- 2.5 / (x + 6) + 2.5 / (x - 6) = 1
- 2.5(x - 6 + x + 6) = (x + 6)(x - 6)
- 2.5*2x = x² - 36
- x² - 5x - 36 = 0
- x = (5 ± √(5² + 4*36))/2 = (5 ± 13) / 2
- x = (5 + 13)/2 = 9 mph (negative root is discarded as the speed should be positive)
(3x-2)(x+1)
3x*x+3x-2x-2
3x^2+3x-2x-2
3x*2+x-2
I think this is the answer
Answer:
the correct answer would be 5
Step-by-step explanation:
when c=7, then we put that value in for c in the equation c-2
c-2
(7)-2
5