Hi. My name is Karen. My daughter is a senior in high school taking algebra. She has a problem she wants me to check. I have been looking at it and I don't think it is completely right. I was wondering if anyone had some time, if they could show me how to do this problem right, that way I can grade my daughters work to make sure she has it right. The probelm is:
An open-topped rectangular box is formed by cutting a 6-inch square from each corner of a rectangular piece of cardboard and bending up the ends and sides. The area of the cardboard before the corners are removed is 768 inches, and the volume of the box is 1,440 cubic inches. Find the dimensions of the origina piece of cardboard.
Now she has a picture of the cardboard drawn. And she has some steps. But I haven't taken math for quite some years and I don't use this as a stay at home mother. I think the steps look mixed up or she is missing some. Thanks for anyone who is willing to take the time to help! I really appreciate it!
Karen
An open-topped rectangular box is formed by cutting a 6-inch square from each corner of a rectangular piece of cardboard and bending up the ends and sides. The area of the cardboard before the corners are removed is 768 inches, and the volume of the box is 1,440 cubic inches. Find the dimensions of the origina piece of cardboard.
Now she has a picture of the cardboard drawn. And she has some steps. But I haven't taken math for quite some years and I don't use this as a stay at home mother. I think the steps look mixed up or she is missing some. Thanks for anyone who is willing to take the time to help! I really appreciate it!
Karen