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pochemuha
2 years ago
7

Every year the value of a surveying machine depreciates by 25% of its value in the previous year , if the value of the machine w

as $11250 in 2012 find the value in 2010
pls help in very detailed way
don't use this sign(*) I get confused​
Mathematics
1 answer:
klasskru [66]2 years ago
8 0

Answer:

I'm not sure but maybe like 5

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Weiming, Farhan and Sam had some comic books.
mixas84 [53]

Answer:

Farhan had 9 comic books

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Step-by-step explanation:

W + F = 36

W = 3F

3F + F = 36

F = 9

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5 0
1 year ago
Find the difference: square root of 20 - square root of 80
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Answer:

-2\sqrt{5}

Step-by-step explanation:

\sqrt{20} = \sqrt{10*2} = \sqrt{5 * 2 *2} = \sqrt{2^2 * 5} = 2\sqrt{5}   \\\\\sqrt{80} = \sqrt{20*4} = \sqrt{5*4 *4} = \sqrt{4^2 * 5} = 4\sqrt{5}   \\\\2\sqrt{5} - 4\sqrt{5} = -2\sqrt{5}

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1 year ago
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2 years ago
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In 2009, a city with a population of 796,000 had 2,388 births. What is the number of births per 10,000 in the city?
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796,000x= (2388*10,000)
796,000x/796,000=23,880,000/796,000
x=30 births
7 0
2 years ago
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