Question

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

Answer 1

Each strip is 29 cm

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Change the m to cm
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6 m = 600 cm

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Find the number of strips for 1 6m-board
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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.

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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.

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Answer: 4 pieces of the 6m board.
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