Answer:
3 3/4 in 1 hour
Step-by-step explanation:
Divide
5/4 ÷ 1/3
15/4
3 3/4 per hour
I got -6, I hope this helps
Answer:
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Step-by-step explanation:
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<span>P<span>(S∪T)</span>=<span>34</span></span>
Explanation:
We use the following fundamental definition from Probability and Set Theory:
<span>P<span>(A∪B)</span>=P<span>(A)</span>+P<span>(B)</span>−P<span>(A∩B)</span></span>
And if we apply this to our problem we have:
<span>P<span>(S∪T)</span>=P<span>(S)</span>+P<span>(T)</span>−P<span>(S∩T)</span></span>
<span> =<span>13</span>+<span>512</span>−P<span>(S∩T)</span></span>
<span> =<span>34</span>−P<span>(S∩T)</span></span>
Now we are told that S and T are mutually exclusive, and so:
<span>P<span>(S∩T)</span>=0</span>
Hence,
<span>P<span>(S∪T)</span>=<span><span>34</span></span></span>