Sanjay S. answered • 01/21/15

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Emily,

Area of a rectangle is length * width

Perimeter is the distance you would walk if you go around the rectangle, it is given as l + w + l + w = 2(l +w)

In given case 2(l+w ) = 400 or l + w = 200 or l = 200-w

Also l *w = 4700

Substitute for length from eq 1

(200-w)*w = 4700

w^2 -200w +4700 = 0

You can solve this quadratic to get the width, which will help you calculate the length.

Emily F.

I'm sorry, I don't completely understand. I know how to do what you're saying, but it's not turning out right. Would you do a step by step with the actualnumbersplease? I'm trying to make sure I know how to do these. Thank you in advance for all the trouble.01/21/15