Posted by Mary on Sunday, October 28, 2007 at 9:27pm.
To make shelves for a bookcase, Nate needs 7 pieces of lumber, each 45 inches long. Nate has several 10foot lengths of lumber in the width and thickness he needs. How many of these 10foot boards will Nate use?

math  Ms. Sue, Sunday, October 28, 2007 at 9:35pm
Each piece of 10footlong lumber has 120 inches (12*10).
You need to figure how many times 45 goes into 120 to find the number of shelves Nate can get from each 10foot long piece.
If you post your answer and the number of 10foot boards Nate will use, we'll be glad to check it.

math  Mary, Sunday, October 28, 2007 at 9:45pm
45 goes into 120 2 times.

math  Ms. Sue, Sunday, October 28, 2007 at 9:50pm
Right. He can get 2 shelves out of each 10foot board.
Since he needs 7 shelves, how many pieces of lumber does he need?

math  Mary, Sunday, October 28, 2007 at 9:57pm
about 4

math  Ms. Sue, Sunday, October 28, 2007 at 10:02pm
You're right. :) Nate needs 4 pieces of board to make his shelves.

math  Mary, Monday, October 29, 2007 at 6:48pm
so the answer is 4. thanx!!! ur a big help!! went through it step by step.
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