Robert is preparing a poster-board presentation. He wants to make a decorative pattern with 10 squares to fill part of the poster. The area of the poster board is 720 square inches. To find how much space Robert will have left for his presentation if he uses squares with 7-inch sides, evaluate 720 − 10s2 when s = 7.(1 point)
Responses
9,940 square inches
To find how much space Robert will have left for his presentation, we need to find the area of the 10 squares and subtract it from the total area of the poster board.
The area of one square is found by taking the side length, s, and squaring it.
So, the area of one square is 7^2 = 49 square inches.
To find the area of 10 squares, we multiply the area of one square by 10.
10 * 49 = 490 square inches.
Now, to find how much space is left for Robert's presentation, we subtract the area of the squares from the total area of the board.
720 - 490 = 230 square inches.
So, Robert will have 230 square inches left for his presentation.
To find how much space Robert will have left for his presentation, we need to subtract the total area of the squares from the area of the poster board.
The area of a square is calculated by squaring the length of one of its sides. In this case, the length of the side of the squares is given as 7 inches.
So, the area of each square is equal to 7^2 = 49 square inches.
Now, we need to find the total area of the 10 squares. This can be done by multiplying the area of one square (49 square inches) by the number of squares (10).
Therefore, the total area of the squares is equal to 49 * 10 = 490 square inches.
To find how much space Robert will have left for his presentation, we subtract the total area of the squares (490 square inches) from the area of the poster board (720 square inches).
Hence, 720 - 490 = 230 square inches.
Therefore, Robert will have 230 square inches of space left for his presentation.
To find how much space will be left for Robert's presentation, we need to first calculate the area of the 10 squares he will use to make the decorative pattern.
The formula for calculating the area of a square is A = s^2, where s is the length of one side of the square.
Given that s = 7 inches, we can substitute this value into the formula to find the area of one square: A = 7^2 = 49 square inches.
Since Robert is using 10 squares, the total area of the squares used for the decorative pattern is 10 * 49 = 490 square inches.
To find how much space will be left for the presentation, we need to subtract the area of the squares from the total area of the poster board.
Given that the area of the poster board is 720 square inches, we can subtract the area of the squares: 720 - 490 = 230 square inches.
Therefore, Robert will have 230 square inches of space left for his presentation.