math

posted by .

John is making a bookcase that is
72 3/8inches tall, he wants 5 equally spaced shelves. Eacg self is 3/8 inche thick. tell him where to drill the holes.

  • math -

    If the first shelf is at the bottom,there will be 5 equally spaced slots, starting from the bottom. The slots (center to center will be then the height less one shelf thickness..think about that top board) slot thickness, center to center will be.

    72 3/8 - 3/8= 72
    then divide by five..14 2/5 inches.

    So, bottom and top holes at 3/16 from then ends.

    Then first the subsequent holes each 14 2/5 inches.

    Check: top+ 5 book slots(center to center)=?
    3/8+ 5*14 2/5 = you do it.

    check my thinking. A drawing might help.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math Word Problem

    I asked my teacher, and my teacher said it had 3 shelves.. A bookcase is to be constructed. The height of the bookcase is 4 feet longer than the lenght of a shelf. If 20 feet of lumber is available for the entire unit (including the …
  2. math for teachers

    John is building bookcase 73 3/8 inches tall, he wants 5 shelves equally spaced. Where does he drill holes (space between shelf)?
  3. math

    the inside of the book shelf is 59in high. the five shelves in it are equally spaced and each shelf is 1in thick. what is the tallest book you can put on a shelf?
  4. Maths

    A bookshelf has 5 shelves its made from wood that is 30 mm thick and the shelves are evenly spaced Bookshelf is 2100mm high 600mm long and 300mm wide Mark out the sides and shelves from a piece of wood 2400mm long and 1200mm wide a …
  5. Math

    Information: Juan plans to build a bookcase t store his paperback books, DVDs, and CDs. he has lumber that he will use for the sides and back of the bookcase. Juan plans for his bookcase to have five shelves including, the top and …
  6. math

    Juan has measured the location of his bookcase and realized that he could only fit a bookcase with shelves that are 1 3/4 feet wide. what is the maximum number of shelves Juan could build for a new bookcase using 18 ft of lumber.
  7. math

    Juan measured the location for the bookcase and realized that his shelves can be no more than 1 3/4 feet wide.What is the maximum number of shelves Juan could build for this new bookcase using the lumber he bought?
  8. Math

    Julio is making a bookcase with 5 shelves. Each shelf is to be 3/4 yard long. How much wood does Julio need for the shelves?
  9. math 6th grade

    Juan measured the location for the bookcase and realized that his shelves can be no more than 13 4 feet wide. a. What is the maximum number of shelves Juan could build for this new bookcase using the lumber he bought?
  10. math 6th grade

    Juan measured the location for the bookcase and realized that his shelves can be no more than 1 3/4 feet wide. a. What is the maximum number of shelves Juan could build for this new bookcase using the lumber he bought?

More Similar Questions