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 10-foot lengths of lumber in the width and thickness he needs. How many of these 10-foot boards will Nate use?
math - Ms. Sue, Sunday, October 28, 2007 at 9:35pm
Each piece of 10-foot-long 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 10-foot long piece.
If you post your answer and the number of 10-foot 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 10-foot board.
Since he needs 7 shelves, how many pieces of lumber does he need?
math - Mary, Sunday, October 28, 2007 at 9:57pm
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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