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Serggg [28]
3 years ago
6

Identify the property. ( x + y ) + z = x + ( y + z )

Mathematics
1 answer:
klemol [59]3 years ago
4 0

Answer: Associative Property

Step-by-step explanation:

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Samuel needs 233 feet of wood to buikld a fence.The wood comes in lengths of 11 feet. How many total pieces of wood will samuel
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There are 233 feet of wood that are required, but we can only buy in lengths of 11 feet. Therefore, we have to take the ceiling of the division 233/11 because if you take less than what you need, you won't have enough, but if you take more than you need, but only the bare minimum of it, you will have enough without wasting money. Therefore, 233/11 = 21, but you have that extra couple feet left, so you need to buy an extra plank to get 22 planks of wood.
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Twice a number subtracted from four times a number, added to 15.
galina1969 [7]
For twice a number we can use the variable x
For four times a number we can use the variable c

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3 years ago
What is the value of a in the equation 3a+b = 54, when b = 9?<br> 15<br> 18<br> 21<br> 27
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Answer:

15

Step-by-step explanation:

3a+9=54

-9        -9

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:3     :3

a=15

4 0
3 years ago
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Each exterior angle of a regular polygon measures 60 degree how many sides does a polygon have ?
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The area of a circle is 706.9 square inches. Find the radius
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Answer:

15 inches

Step-by-step explanation:

The area of a circle is pi r^2. We basically have to work backwards. I divided it fist by 3.14 which is the value of pi. I got 225.127, but I rounded it to 225. I found the square root of this which is 15. If we check the work. 15^2 is 225, and 225 times pi is 706.9.  

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