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Can someone help with this. Heads up it's ratios

Can someone help with this. Heads up it's ratios-example-1
User Zigzagoon
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1 Answer

2 votes

Answer:

The median side measures 92 yards

Explanation:

Let's call x, y, and z the measures of the sides of the triangle.

The ratios between them are:


\displaystyle (x)/(y)=(4)/(7)


\displaystyle (x)/(z)=(4)/(2)=2

The first ratio gives the relation:


\displaystyle y=(7x)/(4)

The second ratio can be solved for z:


\displaystyle z=(x)/(2)

Since the perimeter is 299 yards:


x+y+z=299

Substituting the above relations:


\displaystyle x+(7x)/(4)+(x)/(2)=299

Multiplying by 4:


4x + 7x+2x=1196

Joining like terms:


13x=1196

Dividing by 13:


x=1196/13

x=92

Now calculate y:


\displaystyle y=(7\cdot 92)/(4)

y = 161


\displaystyle z=(92)/(2)

z=46

The median side measures 92 yards

User Chris Crewdson
by
4.8k points