ralph displays 9 samples of fabric on a rectangular posterboard. each sample is a 3-inch square. he places them in 3 rows each 1 inch apart on all sides. this arrangement leaves a border of poster board 1 1/4 inches along the sides and 1 1/2 inches along the top and bottom. what are the dimensions of the posterbjard?
Width:
1 1/4 + 3 + 1 + 3 + 1 + 3 + 1 1/4 = ?
Do the same for the length.
do not understand.
Do you mean you can't add?
1 1/4 + 3 + 1 + 3 + 1 + 3 + 1 1/4
The sum of those above numbers will give you the width of the poster board.
yes i can add. thank you.
the length of a rectangular field is 7 yards longer than triple the width. if the perimeter of the rectangular field is 462 yards what is the length
To find the dimensions of the poster board, we can start by calculating the dimensions of the fabric samples.
Each fabric sample is a 3-inch square, so it has a length of 3 inches and a width of 3 inches.
Now let's calculate the space that the fabric samples occupy.
Since there are 3 rows of fabric samples, there will be 3 rows x 1 inch = 3 inches of space occupied by the fabric samples vertically.
Additionally, there is a border of 1 1/4 inches along the sides and 1 1/2 inches along the top and bottom.
So the total length of the fabric samples plus the borders on the sides is 3 inches (fabric samples) + 2 * 1 1/4 inches (sides) = 3 inches + 2 * 5/4 inches = 3 inches + 10/4 inches = 3 inches + 2.5 inches = 5.5 inches.
Similarly, the total width of the fabric samples plus the borders on the top and bottom is 3 inches (fabric samples) + 2 * 1 1/2 inches (top and bottom) = 3 inches + 2 * 6/4 inches = 3 inches + 12/4 inches = 3 inches + 3 inches = 6 inches.
Therefore, the dimensions of the poster board are 5.5 inches in length and 6 inches in width.