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Ainat [17]
3 years ago
6

Marguerite is building a box from strips of wood.she needs 78 pieces of wood that are each 29 centimeters long.the wood comes in

boards that are 6 meters long.how many boards will she need? Explain
Mathematics
1 answer:
dolphi86 [110]3 years ago
7 0
Each strip is 29 cm

------------------------------------------------------
Change the m to cm
------------------------------------------------------
6 m = 600 cm

------------------------------------------------------
Find the number of strips for 1 6m-board
------------------------------------------------------
Find the number of strips that can be cut from the 6m board.

600 ÷ 29 = 20 pieces remainder 20cm

So we can only cut 20 pieces of 29 strips from one 6m board.

------------------------------------------------------
Find number of boards needed 
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70 ÷ 20 = 3.5 

We need 3.5 of the 6m boards.

Since she can't have half a board, she has to buy 4 pieces of the board.

------------------------------------------------------
Answer: 4 pieces of the 6m board.
------------------------------------------------------ 

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DiKsa [7]

Answer: 1/4

Given : On average, Carson spends about 26% of his allowance each month on candy and soft drinks.  

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Solution:

To Convert fraction into % multiply by 100  

 

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(1/3) * 100  = 33.33 %

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(1/2) * 100 = 50 %

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8 0
2 years ago
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mestny [16]
<h3>Answer:    18pi</h3>

============================================================

Explanation:

The area 81pi square meters leads to the radius 9 meters

Use the formula A = pi*r^2 to see why this is the case. You plug in A = 81pi and solve for r to get r = 9.

-----------------

Once you know the radius, you can determine the circumference C

C = 2*pi*r

C = 2*pi*9

C = 2*9*pi

C = 18pi

The circumference is the perimeter, or distance, around the circle.

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7 0
3 years ago
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Answer:

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