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xxMikexx [17]
2 years ago
13

There are 40 monkeys and 60% of the monkeys are in the trees. How many monkeys are in the trees?

Mathematics
1 answer:
strojnjashka [21]2 years ago
7 0

Answer:

24 monkeys are in the tree

Step-by-step explanation:

We solve it by writing \frac{60}{100} times \frac{40}{1}

Why is it over 100? Because every percent is out of 100!

\frac{60}{100} X \frac{40}{1} (your equation)

60 times 40 = 2400 and 100 times 1 = 100, We get, \frac{2400}{100},

Lastly, we simplify the fraction by 100 on each side:

\frac{2400}{100} / \frac{100}{100}

you get 24

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Answer:

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Step-by-step explanation:

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f(x) = 2x² - 4x + 30

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Since f(3) ≠ 0 then (x - 3) is not a factor of f(x)

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At noon, ship A is 170 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 20 km/h. How fast is
garik1379 [7]
Check the picture below.

now, keep in mind that ship B is going at 20kph, thus from noon to 4pm, is 4 hours, so it has travelled by then 20 * 4 or 80 kilometers, thus b = 80.

whilst the ship B is moving north, the distance "a" is not really changing, and thus is a constant, that matters because the derivative of a constant is 0.

\bf c^2=a^2+b^2\implies \stackrel{chain~rule}{2c\cfrac{dc}{dt}}=0+2b\cfrac{db}{dt}\implies \cfrac{dc}{dt}=\cfrac{b\frac{db}{dt}}{c}
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\\\\\\
\textit{and rationalizing the denominator}\implies \cfrac{160\sqrt{353}}{353}

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