A page of a school year book is 8

1
2
inches by
11 inches. The left and right margin are 3 and
2
1
2
inches, respectively. The space between
two pictures is
1
4
inch.

To fit 3 pictures across the page, how wide
should each picture be?
Answer in units of inches.

3 wide

To figure out how wide each picture should be to fit 3 pictures across the page, we need to account for the left and right margins, the space between the pictures, and the overall width of the page.

Step 1: Calculate the total space taken by the margins
The left margin is 3 inches, and the right margin is 2 1/2 inches. Together, they take up 3 + 2 1/2 = 5 1/2 inches.

Step 2: Calculate the space taken by the spaces between pictures
Since there are 3 spaces between the pictures, and each space is 1/4 inch, the total space taken by the spaces between pictures is 3 * 1/4 = 3/4 inch.

Step 3: Subtract the margins and spaces from the total width of the page
The total width of the page is 8 1/2 inches. Subtracting the margins (5 1/2 inches) and the spaces (3/4 inch) leaves us with:
8 1/2 - 5 1/2 - 3/4 = 8 1/2 - 11/2 - 3/4 = 17/2 - 11/2 - 3/4 = 17/2 - 22/4 - 3/4 = 17/2 - 25/4 = 34/4 - 25/4 = 9/4

Step 4: Divide the remaining width by the number of pictures (3)
To find the width of each picture, we divide the remaining width by the number of pictures (3):
9/4 / 3 = 9/4 * 1/3 = 9/12 = 3/4

Therefore, each picture should be 3/4 inch wide to fit 3 pictures across the page.