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Tom [10]
3 years ago
15

Find the least common multiple of 3 and 7

Mathematics
2 answers:
Sav [38]3 years ago
8 0

The LCM of two prime numbers is generally just their product, since they share no common factors.


3 and 7 are both prime numbers, so their LCM (least common multiple) is simply the numbers multiplied together. In this case, the LCM is thus 21.

Arada [10]3 years ago
3 0

Answer: 21

Step-by-step explanation: To find the least common multiple or <em>lcm</em> of 3 and 7, begin by finding the first few multiples of each number and comparing the lists.

<u><em>Multiples of 3</em></u>

1 × 3 = 3

2 × 3 = 6

3 × 3 = 9

4 × 3 = 12

5 × 3 = 15

6 × 3 = 18

7 × 3 = 21

<em><u>Multiples of 7</u></em>

1 × 7 = 7

2 × 7 = 14

3 × 7 = 21

Since 21 appears in both lists, we can stop here.

Therefore, the least common multiple of 3 and 7 is 21.

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Answer:

The height is 10in

Step-by-step explanation:

If you need to calculate the volume, you need to know the formula. The formula is length x width x height. You have the length and width, so you need the height. 2.5in x 15in x 10in  = 375 in^3. You may ask why it is inches cubed instead of inches. It is inches cubed because you multiplied three inches together.

8 0
3 years ago
Melisande collected 14 bottles on Saturday and 9 bottles on Sunday for recycling. On Monday, she took all the bottles to the rec
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Answer:

Option B is correct that is  amount she is getting per bottle is $0.15  

Step-by-step explanation:

We have been given the information that melisande collected 14 bottles on saturday and 9 bottles on sunday

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Since, she is left with $3.20 after the amount she gets for bottles we will get the equation below:

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Now, since she has to pay one time service fee equation will become

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4 0
3 years ago
Read 2 more answers
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