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Alex777 [14]
3 years ago
8

Cathy measured a room to be 10 1/2 feet by 12 5/8 feet. What is the area of the room

Mathematics
1 answer:
Masteriza [31]3 years ago
6 0
We know that are for the rectangle is A=a*b, where 
A i area, a is one side and b is second side. It doesnt matter side we assume a or b because multiplicity is commutative.
We can substitute our data to formula
A=10 \frac{1}{2} *12 \frac{5}{8} = \frac{21}{2}* \frac{101}{8}= \frac{21*101}{2*8}= \frac{2121}{16}= 132.56 [feet squared] - its the answer
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san4es73 [151]

Answer:

7/66

Step-by-step explanation:

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of things you want/of things are possible

Using that same logic, the next student should be easier. We reduced the student population by 1, so we have 11 possible ways it can happen now instead of 12, so that gives us 7/11 for the probability of picking a boy as the second pick.

And lastly, using the same logic shown above, the probability of picking a girl on the third pick would be: 4/10

We are not done, though. We have the separate probabilities, but now we have to multiply then together to figure out the probability of this exact event happening:

5/12 * 7/11 * 4/10 = 140/1320

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