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kramer
3 years ago
6

Explain how you know whether 1/15 is equal a terminating decimal or

Mathematics
1 answer:
Ulleksa [173]3 years ago
3 0

The lame answer is that you put it into a calcuator and see.

The more formal way you know is if, when the fraction is reduced, the denominator's only prime factors are 2s or 5s.  If that's the case, the fraction will terminate.  If you have any prime factor other than 2 or 5, it will repeat.

But knowing that "2 or 5 prime factor" idea would have to be something specifically taught in your class (or a prerequisite class).

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I don’t understand number 5
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3 years ago
There are Math books and Science books on a large shelf. The ratio of Math books to Science books is 4:5. If there are 27 total
kiruha [24]

Answer:

12:15

Step-by-step explanation:

27/9=3

3x4=12

3×5=15

There are 12 maths book's

8 0
3 years ago
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The first step in calculating the mean is to ____the numbers<br> add<br> group
Blababa [14]
The first step in calculating the mean is to add the numbers. After that you divide by the number of items in the data set. You don’t need to group the numbers to find the mean. Hope this helped!
4 0
4 years ago
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PLEASE HELP!! I will give BRAINLIEST!! What is the range of possible sizes for side x?
Novay_Z [31]

Answer:

.5 < x < 16.5

Step-by-step explanation:

The smallest x  can be is greater than the difference of the other two sides

8.5 -8 = .5

The largest x can be the less than the sum of the two sides

8.5+8 = 16.5

.5 < x < 16.5

7 0
3 years ago
When rolling a number cube numbered 1 to 6, how would you describe the chances of rolling a number greater than or equal to 3 ve
Andrew [12]

Answer:

A. more likely to roll a number greater than or equal to 3

Step-by-step explanation:

Take a look at the probabilities for each:

Greater than or equal to 3:

You can roll a 3, 4, 5, or 6

Less than 3:

You can roll a 1 or a 2.

To find probability, divide how many ways there are to get what you want by the number of total ways to get something at all.

For freater than or equal to 3:

You can roll a 3, 4, 5, or 6 to fulfill this, so 4 things that you want.

You could roll a 1, 2, 3, 4, 5, or 6 on this number cube, so 6 possibilities.

Divide 4 by 6, and you get 2/3.

For less than 3:

You can roll a 1 or a 2 to fulfill this, so 2 things you want.

Divide by 6 (again) total possibilities, and you get 1/3.

2/3 is more than 1/3, so the first possibility is more likely than the second.

3 0
4 years ago
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