Question

The length of a rectangle is 4 centimeters more than the width.if both the width and the length were tripled,the area would be 108 square centimeters.find the dimensions of the rectangle.

Answer 1

Since both the length and the width are tripled, the area will be nine times larger.  To counter this, divide by nine.  108/9=12  Divide this by 2 to get one length and one width.  You get 6.  1+5=6 and 1 is 4 smaller than 5, so the width of this rectangle is 1 cm and the length is 5 cm.