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Ksju [112]
3 years ago
10

what is the approximate percent increase when the population of a town increases from 12,089 to 15,025? round the population amo

unts to the nearest thousand to find an estimate of the percent increase.
Mathematics
2 answers:
IrinaVladis [17]3 years ago
7 0

Answer:

The approximate percentage is 25%.

Step-by-step explanation:

The initial population was = 12089 rounded off to 12000.

The final population is = 15025 rounded off to 15000.

Change in population = 15000-12000=3000

So, the approximate percent increase is =

\frac{3000}{12000}\times100

= 25%.

telo118 [61]3 years ago
3 0

Answer:

What is the approximate percent increase when the population of a town increases from 12,089 to 15,025? Round the population amounts to the nearest thousand to find an estimate of the percent increase.

The Answer is,  

The percent increase is approximately 25%.

Step-by-step explanation:

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4 years ago
A boat takes 4 hours to go 20 miles upstream.It can go 32 miles downstream in same time.Find the rate of the current and the rat
Mandarinka [93]
Recall your d = rt, distance = rate * time.

now, if the boat has a speed of say "b", and the current has a speed of say "c", when the boat is going upstream, is not really going "b" fast, is going " b - c " fast, because the current is eroding speed from it, going upwards.

And when the boat is going downstream, is not going "b" fast either, because the current is now adding to speed to it, so is really going " b + c " fast.

The time it took one way, is the same time it took back, 4 hours each way.

thus

\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{t}\\
&------&------&------\\
Upstream&20&b-c&4\\
Downstream&32&b+c&4
\end{array}
\\\\\\
\begin{cases}
20=4(b-c)\implies \frac{20}{4}=b-c\implies 5+c=\boxed{b}\\
32=4(b+c)\implies \frac{32}{4}=b+c\implies 8=b+c\\
--------------------\\
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\end{cases}
\\\\\\
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what's the speed of the boat?  well, 5 + c = b.
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3 years ago
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enyata [817]
8: tenths
9:hundredth
7:thousandth
8 0
3 years ago
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Step-by-step explanation:

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