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chubhunter [2.5K]
3 years ago
12

You buy a movie for 19.99 and a set of earphones for 12.49 how much is the bill before taxes

Mathematics
2 answers:
-BARSIC- [3]3 years ago
7 0
19.99+12.49=32.48
19.99 for the movie and 12.49 for the earphones together they make 32.48
olga_2 [115]3 years ago
5 0

Answer:32.39

Step-by-step explanation: cost of movie is 19.9

Cost of earphone is 12.49

Adding both cost is 19.9+12.49

=32.39

The cost before tax deduction is 32.39

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The value (y2) of r = 1/2.

This question relates to equation of a straight line but we are looking for the slope in this case.

<h3>Slope</h3>

This is the ratio to which we measure the change along the y-axis to the change along the x-axis. The formula is given as

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m = \frac{y_2 - y_1}{x_2 - x_1} \\34 = \frac{r - 5}{-3 - 3}\\34 = \frac{r - 5}{-6}\\

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34 * -6 = r - 5\\-204 = r - 5\\r = -204+5\\r = -199

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This is not mathematically obtainable and we would use 3/4 as the value of slope

\frac{3}{4}= \frac{r - 5}{-3 - 3}\\\frac{3}{4}=\frac{r - 5}{-6}\\4(r-5) = 3 * -6\\4r- 20 = -18\\4r = -18 +20\\4r = 2\\r = \frac{1}{2}

The most logical value of r = 1/2

Learn more on slope here;

brainly.com/question/4074386

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