QUESTION IMAGE
Question
directions: use the drawing tool(s) to form the correct answer on the provided grid. use the formulas for the area and perimeter of a rectangle to solve this problem. draw a rectangle that has: an area of 35 square centimeters a perimeter of 24 centimeters the point on the grid represents one vertex of this rectangle. draw the sides of the rectangle along the grid lines. each square in the grid has a side length of 1 centimeter.
Step1: Recall rectangle formulas
Let the length of the rectangle be $l$ and the width be $w$. The area formula is $A = lw$ and the perimeter formula is $P=2(l + w)$. We know that $A = 35$ and $P = 24$. So we have the system of equations
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Step2: Simplify perimeter equation
From $2(l + w)=24$, divide both sides by 2 to get $l + w=12$, which means $l = 12 - w$.
Step3: Substitute into area equation
Substitute $l = 12 - w$ into $lw = 35$, we get $(12 - w)w=35$. Expand to $12w-w^{2}=35$, or $w^{2}-12w + 35=0$.
Step4: Solve quadratic equation
Factor the quadratic equation $w^{2}-12w + 35=0$ as $(w - 5)(w - 7)=0$. So $w=5$ or $w = 7$. If $w = 5$, then $l=7$; if $w = 7$, then $l = 5$.
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