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Gwar [14]
4 years ago
14

Mark is planning to run in a 10-km race he will have to run 1 4/5 km uphill, 2 7/10 km downhill, and the rest of the race on lev

el ground how many kilometers are level
Mathematics
1 answer:
777dan777 [17]4 years ago
7 0
<span>Uphill distance = 1 4/5 = 9/5 = 18/10 km Downhill Distance = 2 7/10 = 27/10 km Total Uphill and Downhill = 18/10 + 27/10 = 45/10 = 4.5 km Hence total level ground = Total race km - (Uphill + Downhill) =10 - 4.5 = 5.5 km Hence the answer is 5.5 km.</span>
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42,42,24,36,60,6<br> Find the sum of the differences squared between the data entries and the mean.
irakobra [83]
42,42,24,36,60,6

1st Find the mean  X̅ =(42+42+24+36+60+6)/6 = 35

2nd find the difference between the data set value and the mean (x - X̅)
and square them:
(42-35)² = 49
(42-35)² = 49
(24-35)² = 121
(36-35)² = 1
(60-35)² = 625
(6-35)² =  814
Now add up te result ∑(x-X̅)² =1659
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Step-by-step explanation:

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Diane is 23 years older than her daughter Amy and 6 years Diane will be twice as old as Amy how old are they now
Dmitry_Shevchenko [17]
The age difference between Diane and Amy remains the same. 6 year later, the age difference is still 23 years old.

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4 years ago
Can you please help with this question? (for 30 points)
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4 years ago
Andrei had cinnamon-scented jar candle that burned for 303030 hours and a berry-scented pillar candle that burned for 888888 hou
enyata [817]

The cinnamon-scented jar candle brunt faster.

<h3>What does relative speed means ?</h3>

Relativity means observing some action with different perspective.

Suppose you are moving in a bus at 100 km/hr and you are reading a book.To an observer which you are passing by you and the book he observes moving at a speed of 100 km/hr.But for you the book is not moving at all because both you and the book is moving at a speed of 100 km per hour.

According to the given question Andrei had cinnamon-scented jar candle that burned for 303030 hours and a berry-scented pillar candle that burned for 888888 hours.

From the given data of burning hours we can observe that berry-scented pillar candle that burned for 888888 hours which is more that of Andrei had cinnamon-scented jar candle that brunt for 303030 hours because

30303030 < 888888.

Learn more about relative speed here :

brainly.com/question/15687499

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