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olya-2409 [2.1K]
2 years ago
9

Zaharia is 4/5 as tall as Zayden. Zayden is 3/5 as tall as Eric. Eric is how many times as tall as Zaharia?

Mathematics
1 answer:
tatyana61 [14]2 years ago
3 0

Answer: rttgyt5tgot4h5uioyh

Step-by-step explanation:

hudshviowuerbgp

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What are the values of a and b?
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Answer:

<h2>a = 400/21, b = 580/21</h2>

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Small triangles are similar. Therefore, the sides are proportional

\dfrac{a}{20}=\dfrac{20}{21}               <em>cross multiply</em>

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For b, we can use the Pythagorean theorem:

b^2=\left(\dfrac{400}{21}\right)^2+20^2\\\\b^2=\dfrac{160000}{441}+400\\\\b^2=\dfrac{160000}{441}+\dfrac{176400}{441}\\\\b^2=\dfrac{336400}{441}\to b=\sqrt{\dfrac{336400}{441}}\\\\b=\dfrac{\sqrt{336400}}{\sqrt{441}}\\\\b=\dfrac{580}{21}

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3 years ago
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