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choli [55]
2 years ago
11

What is the total cost of two dozen erasers that are priced at 50 cent each if 8%sales tax is added.

Mathematics
1 answer:
Dahasolnce [82]2 years ago
3 0
Let's translate this question into a formula:

Total cost = (unit price of the eraser) (number of erasers purchased) 

Final total cost = (Total cost) * 1.08 = ?

Why?  The Final Total Cost = Cost of the erasers   +   (Cost of the erasers)(sales tax rate)

Final total cost = 1.08 (Total Cost)
Final total cost = 1.08 ($0.50)(24)    (since 1 dozen = 12, and 2 dozen = 24)
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In ΔSRQ and ΔSTR,

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By AA property of similarity,

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Corresponding parts of similar triangles are proportional.

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Substitute the given values.

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x=\sqrt{225}

x=15

The value of x is 15. Therefore, the correct option is B.

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In which interval is the radical function f of x is equal to the square root of the quantity x squared plus 2 times x minus 15 e
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Using function concepts, it is found that it is increasing on the interval:

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The graph is given at the end of this question.

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A similar problem is given at brainly.com/question/13539822

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