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Irina-Kira [14]
3 years ago
11

Lucy spent $165 in December using a new credit card. In January, she began paying between $15 and $25 each month towards her acc

ount balance. The equation f(x) = 165(0.8)x describes the curve of best fit for Lucy's account balance f(x). Let x represent the number of months since December. Month Account Balance December $165.00 January $132.00 February $105.60 March $84.48 Using the equation for the curve of best fit, what will Lucy's account balance be in June? Round to the nearest cent. A. $28.25 B. $53.95 C. $43.25 D. $33.25
Mathematics
1 answer:
uysha [10]3 years ago
7 0

The answer is letter C. $ 43.25

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Answer:

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Expand the brackets. Remember brackets mean to multiply.

We multiply the 2x and the 7x to get 14x and we multiply the -3 by 4 to get -12 as shown below;

(2x-3)(7x+4)

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