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Alex Ar [27]
3 years ago
11

Can anyone figure this out and explain? Thanks

Mathematics
2 answers:
dezoksy [38]3 years ago
5 0

The deepest point of the lake is -922, so to get to the surface of the lake you would need to add 922 feet.

The deepest point of the lake is 11,542 feet above sea level.


To find the surface of the lake add 922 to 11,542.

11542 + 922 = 12,464 feet

Vedmedyk [2.9K]3 years ago
5 0

11,542 - (-922) = 12,464 so the highest point is 12,464. AKA Elevation of the Lake.

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287 m ÷ 3.5 (it's 3.5 because 30 mins is half of an hour) 

\frac{287 miles}{3.5 hours} = 82 miles per hour 

So your final answer would be 82 miles per hour  :)
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The rate r must be about 42.67%.

_____

<em>Comment on the wording</em>

We interpreted the problem to mean the end-of-year amount is 1.5 times the beginning-of-year amount. That is, it is "1.5 times the amount invested."

The word "more" is typically used when addition is involved. For example, "25% more" means 25% of the original is added to the original. We occasionally see "more" where "x times more" is intended to mean "x times", rather than "x times the amount, added to the original amount."

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