Stacey needs to buy some cardboard to build a box 10 inches long, 9 inches wide, and 7 inches high. If she purchases 500 square inches of cardboard, how much will be left over?
show the steps pls
(1 point)
Responses
446 square inches
446 square inches
54 square inches
54 square inches
426 square inches
426 square inches
406 square inches
First, find the total surface area of the box:
2(10*9) + 2(10*7) + 2(9*7) = 180 + 140 + 126 = 446 square inches
Then, subtract the total surface area of the box from the amount of cardboard Stacey purchased:
500 - 446 = 54 square inches
54 square inches of cardboard will be left over.