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
230 square inches
230 square inches
9,940 square inches
9,940 square inches
580 square inches
To find the area of 10 squares with 7-inch sides, we need to multiply the area of one square by the number of squares. The area of one square is calculated by multiplying the length of one side by itself, so the area of one square is 7^2 = 49 square inches.
The total area of 10 squares is 10 * 49 = 490 square inches.
To find how much space Robert will have left for his presentation, we subtract the area of the squares from the total area of the poster board: 720 - 490 = 230 square inches.
Therefore, Robert will have 230 square inches left for his presentation.