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kozerog [31]
3 years ago
15

Hurry pls What is the LCM of 15 and 21 The LCM is ____​

Mathematics
1 answer:
Mrrafil [7]3 years ago
3 0

Answer:

105

Step-by-step explanation:

First of all this is to easy if you don't know how to do this then your in danger of math and you should ask your math teacher for private online lesson regarding this.

LCM of 15,21

3 | 15 | 21

5 | 5 | 7

7 | 1 | 7

   | 1 | 1

LCM: 3x5x7 -> 105

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3 years ago
A cement walk 3 ft wide is placed around the outside of a rectangular garden plot that is 20ft by 30ft. Find the cost of the wal
Inessa05 [86]

Let us calculate the area of the walk.

Since the width of the walk is 3 feet, and the walk will be placed all the 4 sides,

Length of the plot including walk = 20 + (2 × 3) = 20 + 6 = 26 feet.

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Area of the plot including walk = 26 × 36 square feet.

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7 0
3 years ago
Can anyone help me with this?
Artemon [7]

7) 5+4 = 9

4+5=9

8) 6+5 = 11

5+6 = 11

9) 6+7 = 13

7+6 = 13

10) 7+8 = 15

8+7 = 15

11) 8+9 = 17

9+8 = 17

12) 5+6 = 11

6+5 = 11

13) 7+6 = 13

6+7 = 13

14) 9+8 = 17

8+9 = 17

3 0
3 years ago
Read 2 more answers
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