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Rufina [12.5K]
3 years ago
10

Please help is this a function or not ​

Mathematics
2 answers:
JulsSmile [24]3 years ago
8 0
It’s not a function cause the x is repeating
nevsk [136]3 years ago
3 0

Answer: yes it is a function

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The value of Peter's house has risen 20% a year for the last 3 years. If the value of Peter's home 3 years ago was $110,000.00,
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Increase $110,000 by 20% 3 times.

110,000 x 0.2 = 22000
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So we must add 22000 to 110,000, then take 20% of the new cost, and repeat.

Add them
110,000 + 22000 = 132000

Take 20% of new value
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Add that
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Take another 20% of that
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Add them
158400 + 31680 = 190080

So the value is now $190,080

A much more efficient way to do this would be multiplying 1.2 instead of 0.2, and skipping the adding part, as you already took 100% of it and are adding 20% more.

Hope this helps!
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The length of a rectangle is 3 more than five times its width. If the perimeter of
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To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width.

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