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Marysya12 [62]
3 years ago
11

A porch will be 8 meters wider than long. The scale model for the porch floor has a width of 24 centimeters and length of 12 cen

timeters. What will the length of the porch's floor
Mathematics
1 answer:
kati45 [8]3 years ago
7 0
The Answer is 16cm long
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Consider two boxes, one containing one black and one white marble, the other, two black and one white marble. A box is selected
valina [46]

Answer:

\frac{7}{12}

Step-by-step explanation:

Probability refers to chance of happening of some event.

Conditional probability is the probability of an event A, given that another event B has already occurred.

B_1,B_2 denote the two boxes.

In box B_1:

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No. of white balls = 1

In box B_2:

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To find:probability that the marble is black

Solution:

Probability that the marble is black = \frac{1}{2}(\frac{1}{2} )+\frac{1}{2}(\frac{2}{3})=\frac{1}{4}+\frac{1}{3}=\frac{7}{12}

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3 years ago
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Answer:

http://mansfieldalgebra1.weebly.com/uploads/1/0/4/4/10447339/rc_2_answer_key.pdf

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