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
34,790 square inches
34,790 square inches
9,940 square inches
9,940 square inches
230 square inches
230 square inches
580 square inches
To find out how much space Robert will have left for his presentation, we need to calculate the area of the 10 squares and subtract it from the total area of the poster board.
The area of each square is given by s^2, where s = 7 (side length of each square).
So, the area of one square is 7^2 = 49 square inches.
To find the area of 10 squares, we multiply 49 by 10: 49 * 10 = 490 square inches.
Finally, we subtract the area of the squares from the total area of the poster board: 720 - 490 = 230 square inches.
Therefore, the correct answer is 230 square inches.
To find the remaining space on the poster board, we need to subtract the total area of the 10 squares from the area of the poster board.
First, let's find the area of one square with side length 7 inches.
Area of a square = side length * side length = 7 * 7 = 49 square inches
Now, let's find the total area of the 10 squares.
Total area of 10 squares = 10 * 49 = 490 square inches
Finally, let's find the remaining space on the poster board by subtracting the total area of the squares from the area of the poster board.
Remaining space = 720 - 490 = 230 square inches
Therefore, Robert will have 230 square inches of space left for his presentation.
To find out how much space Robert will have left for his presentation, we need to subtract the total area covered by the 10 squares from the area of the poster board.
First, calculate the area of one square by squaring the length of one side. In this case, the side length is given as 7 inches. So, the area of one square is 7^2 = 49 square inches.
Since Robert needs 10 squares, we can find the total area covered by multiplying the area of one square by the number of squares: 10 * 49 = 490 square inches.
Now, subtract this total area covered by the squares from the area of the poster board. The area of the poster board is given as 720 square inches.
So, to find the remaining space for Robert's presentation, evaluate 720 - 490 = 230 square inches.
Therefore, the correct answer is 230 square inches.