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evablogger [386]
2 years ago
14

3.

Mathematics
1 answer:
Lady_Fox [76]2 years ago
5 0
他們會被當了總統寶座的法老時代就開始有個去的話讓
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In a triathlon , Jenny swam for 1 hour , biked for 1.75 hours , and ran for 1 hour. Her average biking speed was 2 times her ave
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Jenny average swimming speed was 2.5 km/h, her average biking speed was 24 km/h and her average running speed was 12 km/h.

<h3>Speed</h3>

Speed is the ratio of total distance travelled to total time taken. It is given by:

Speed = distance / time

Let a represent the average swimming speed, b the average biking speed and c the average running speed.

Her average biking speed was 2 times her average running speed, hence:

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Her average running speed was 8 times her average swimming speed. Hence:

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From equation 1, 2 and 3:

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Jenny average swimming speed was 2.5 km/h, her average biking speed was 24 km/h and her average running speed was 12 km/h.

Find out more on speed at: brainly.com/question/6504879

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