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25 votes
25 votes
S =The maximum walking speed S, in feet per second, of an animal can be modeled by the equationVgL, where g = 32 ft/sec and L is the length, in feet, of the animal's leg. To the nearesthundredth, how many times greater is the maximum walking speed of a giraffe with a leg length of 6feet than a hippopotamus with a leg length of 3 feet?1.41 times2.00 times0.71 times4.06 times

User Guy Brooker
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1 Answer

19 votes
19 votes

1.41 times

1) Well, let's get started by writing out the equation:


S=\sqrt[]{gL}

2) Let's find out the maximum walking speed of a giraffe, plugging into that the given data: Giraffe Leg Length: 6


\begin{gathered} S_{\text{giraffe}}=\sqrt[]{32*6} \\ S_{\text{giraffe}}=\sqrt[]{192}\approx13.86 \end{gathered}

And the hippotamus:


S_{\text{hippo}}=\sqrt[]{32*3}\Rightarrow\sqrt[]{96}\approx9.80

And now how many times greater by dividing the giraffe's speed by the hippopotamus speed:


(13.86)/(9.8)\approx1.41

Hence, the answer is 1.41 times.

User Roman Vogt
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