Predict the number of pancakes that would have 48 chocolate chips
1 answer:
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Let w and l be the dimensions (width and length, respectively) of the coop.
We know that the length of the coop is 4 feet less than twice the width, which means that
Also, the area is 510, but the area is the product of the dimensions, so we have
Plug the expression for l in the formula for the area:
We can divide the whole expression by 2 and solve it with the quadratic formula:
So, the two solutions are
The negative solution makes no sense (we can't have negative lengths), so the width must be 17.
We conclude that the length is