A = LW
420 =(3w -1) * w
Are you sure the area of the garden is 420 centimeters? That would make the length about the length of my forearm and hand and the width about the length of my hand.
The area of a rectangular garden is 420sq.cm. its length is one less than thrice its width. what are the dimensions of the rectangular garden?
3 answers
L = 3 W - 1
w * (3 w - 1) = 420 ... 3 w^2 - w - 420 = 0
solve the quadratic for w
substitute back to find L
w * (3 w - 1) = 420 ... 3 w^2 - w - 420 = 0
solve the quadratic for w
substitute back to find L
Must be a garden for a doll house:
12 cm by 35 cm.
12 cm by 35 cm.
4 answers