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Hatshy [7]
2 years ago
10

Of 15 possible​ books, you plan to take 7 with you on vacation. How many different collections of 7 books can you​ take?

Mathematics
2 answers:
I am Lyosha [343]2 years ago
8 0
You can take 2! And still have one remaining! I’m not 100% but hope it helped
cestrela7 [59]2 years ago
7 0
Am I the only one that doesn’t get what the question is asking
I feel like 1 piece of information is missing

Like how much in a collection?
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168°

Step-by-step explanation:

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What number two numbers when multiplied equal 24 but when added equal -4
madam [21]
Since it says when Added they are a negative and when multiplied they are positive, we know our two numbers are negative.
think of all multiples of 24
6 and 4
8 and 3
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3 years ago
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2 years ago
A stack of logs has 32 logs on the bottom layer. Each subsequent layer has 6 fewer logs than the previous layer. If the top laye
Svetlanka [38]

Answer:  The total number of logs in the pile is 6.

Step-by-step explanation:  Given that a stack of logs has 32 logs on the bottom layer. Each subsequent layer has 6 fewer logs than the previous layer and the top layer has two​ logs.

We are to find the total number of logs in the pile.

Let n represents the total number of logs in the pile.

Since each subsequent layer has 6 fewer logs then the previous layer, so the number of logs in each layer will become an ARITHMETIC sequence with

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We know that

the n-th term of an arithmetic sequence with first term a and common difference d is

a_n=a+(n-10)d.

Since there are n logs in the pile, so we get

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3 years ago
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