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.
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
1 answer
3 answers