3 years ago

The regular price of an item is $84. The item is on sale witha discount of $12. What is the discount rate.

Mathematics

1 answer:

sammy [17]3 years ago

5 0

Answer:

Discount = 14.3% (rounded up to one decimal place)

Step-by-step explanation:

The regular price of an item is $84

Discount = $12

Percentage discount = (Discount ÷ regular price) × 100

Percentage discount = $\frac{12}{84}$ × 100 = 14.3% (rounded up to one decimal place)

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Formula to find the confidence interval for population mean :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=26\pm(1.96)\dfrac{6.2}{\sqrt{50}}\\\\\approx26\pm1.72\\\\=(26-1.72,\ 26+1.72)\\\\=(24.28,\ 27.72)$

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