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ryzh [129]
3 years ago
6

The sale price of a swimming pool after 16.5% discount $1135.60. Find the original price of the pool

Mathematics
1 answer:
OverLord2011 [107]3 years ago
7 0

well, let's say the original price is "x", and thus is also the 100% price of the item, however the item is discounted by 16.5%, well 100% - 16.5% = 83.5%, so then the discounted price is really the 83.5% of the item, and we know that is $1135.60.

now, if 1135.60 is 83.5%, what is the 100% or namely "x"?

\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 1135.60&83.5\\ x&100 \end{array}\implies \cfrac{1135.60}{x}=\cfrac{83.5}{100}\implies 113560 = 83.5x \\\\\\ \cfrac{113560}{83.5}=x\implies 1360 = x

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Answer:

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For this case the value of b is given by:

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Step-by-step explanation:

For this case we are ssuming that we can model the GDP gross domestic product (GDP) of the US, in thousands of  dollars with the folllowing function:

GDP = 11 (1.022)^t

And we can see that this formula is governed by the exponential model formula given by:

y = a (b)^t

Where a represent the initial amount and b the rate of growth/decay for the model and the time in  years since 1950.

For this case the value of b is given by:

b = 1.022

And if we solve for r the rate of growth we got:

1.022 = 1+ r

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The answer for this case would be: 1.022 represent the growth factor for the GDP since 1950 (because b >1) and each year the GDP increase by a factor of 1.022

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3 years ago
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Acc. to BODMAS

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2 years ago
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Okay so here it is

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3 years ago
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