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 bottom shelves. Each shelf will be 2 1/2 feet long.

Question: Juan bought a piece of pine limber that is 18 feet long. Does he have enough lumber to make the five shelves? If not, how much more does he need? If so, how much will be left over?
Juan 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 this new bookcase using the lumber he bought?

You're welcome.

Right. He has 5 1/2 feet left over.

Thanks for helping me cheat on a quiz.

5 * 2 1/2 = ?

18 / 1.75 = ?

No.

Multiply:

5 * 2 1/2 = ?

Subtract the product from 18. What do you get?

5 1/2

Thank you so much!! Bye:)

thanks mrs sue

To determine if Juan has enough lumber to make the five shelves, we need to calculate the total length of lumber required.

First, let's calculate the length needed for each shelf. Since each shelf is 2 1/2 feet long, we multiply this length by 5 (the number of shelves) to find the total length required:
2 1/2 feet x 5 shelves = 12 1/2 feet

Now, we need to compare the required length (12 1/2 feet) with the length of the lumber Juan bought, which is 18 feet long.

Juan has enough lumber to make the five shelves because the length of the lumber he bought (18 feet) is greater than the required length (12 1/2 feet).

To determine how much lumber will be left over, subtract the required length from the length of the lumber Juan bought:
18 feet - 12 1/2 feet = 5 1/2 feet

Therefore, Juan will have 5 1/2 feet of lumber left over.

Now let's calculate the maximum number of shelves Juan could build for the new bookcase, considering the width limitation.

Juan's new bookcase will have shelves that are 1 3/4 feet wide. To find the number of shelves he can build, we need to divide the available length of lumber (18 feet) by the width of each shelf (1 3/4 feet).

Let's convert 1 3/4 feet to a decimal:
1 3/4 = 1.75 feet.

Now, divide the available length of lumber (18 feet) by the width of each shelf (1.75 feet):
18 feet / 1.75 feet = 10.2857 shelves (approximately)

Since we cannot have a fractional number of shelves, the maximum number of shelves Juan can build for the new bookcase is 10.

Please note that Juan will have some leftover lumber, as 10 shelves would still require less than the full length of the lumber he bought.

On the first question I got 7 feet of lumber left