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docker41 [41]
3 years ago
7

In how many ways you can put 2 books on 5 shelves so that

Mathematics
2 answers:
disa [49]3 years ago
6 0

Answer:

Picking any one of the two books there are five shelves to put it on - which makes five ways to place it and for each of those five ways there are four shelves the other book could go such that the two books are not on the same shelf. That's four ways to place a second book for each of the five ways to place the first. That's a total of 20 ways.

Step-by-step explanation:

Brainly? I only need one more to rank up!

Lostsunrise [7]3 years ago
3 0

Answer:

Step-by-step explanation:

rfgg

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Which classification describes the system of linear equations?
Aleksandr [31]

Answer:

A system of two linear equations can have one solution, an infinite number of solutions, or no solution. Systems of equations can be classified by the number of solutions. If a system has at least one solution, it is said to be consistent . If a consistent system has exactly one solution, it is independent .

Step-by-step explanation:

3 0
1 year ago
Find the angle x (in degrees) that the wheelchair ramp makes with the ground.​
iogann1982 [59]

Answer:

x=175

Step-by-step explanation:

The sum of all the degrees in a triangle is 180. First, you have to rind what the third degree of the triangle is. We will call this y.

85+90+y=180

175+y=180

y=5

The floor is flat, so it will be 180 degrees, therefore, x+y=180. We can substitute 5 in for y, so 5+x=180.

So, x would be 175.

8 0
3 years ago
What is the coefficient of the second term in this expression?9–6w–5y
Ber [7]

Answer:

The coefficient of the second term in this expression is 6.

Step-by-step explanation:

A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression. There are three terms in this expression (9, 6w, and 5y), and the coefficient of the second term is 6.

4 0
3 years ago
A teacher is planning her reading for the next year. She has 5 novels 5 fiction 5 biographies and 3 plays. She wants to read 10
Vlad [161]

Answer:

1 and 10/8

Step-by-step explanation:

5+5=10/1

5+3=8

7 0
3 years ago
Write 2/3 and 3/4 as equivalent fractions using a common denominator
Arlecino [84]
8/12 and 9/12. Respectively.
5 0
3 years ago
Read 2 more answers
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