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GalinKa [24]
3 years ago
9

10 decreased by twice a

Mathematics
1 answer:
Simora [160]3 years ago
5 0

Answer:

in simplest terms 10 decreased by twice A can be written as

10-2a

Step-by-step explanation:

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Suppose that a group of 10 students are to be assigned to four dorm rooms: a single, a double, a triple and a quad. How many way
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Answer:

Total number of ways to select all sstudent to make assignment = 10×36×70×1 = 25200

Step-by-step explanation:

We have given number of students = 10

These 10 students are assigned to four dorm rooms a single, a double, a triple and a quad

So number of ways to assigned single student =^{10}C_1=\frac{10!}{1!9!}=10\\

Now left student = 10 -1 = 9

So number of ways to assigned double student =^{9}C_2=\frac{9!}{2!7!}=36

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So number of ways to assigned triple student =^{7}C_3=\frac{7!}{2!4!}==70

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So number of ways to assigned quad student =^{4}C_4=\frac{4!}{4!0!}=1

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3 years ago
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Step-by-step explanation:

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