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3 years ago

If the regular price is $28 and the sales price is $21, what is the percent of the discount

Mathematics

2 answers:

ad-work [718]3 years ago

6 0

So the answer is seven cause u mines twenty eight and twenty one and the answer is seven

lorasvet [3.4K]3 years ago

5 0

Answer:

25%

Step-by-step explanation:

The price dropped by $7, because $28-$21=$7.

7/28 is 1/4. 1/4 in a percentage is 25%, because 1/4=25/100

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Vadim26 [7]

Answer:

$\displaystyle D) {x}^{5} + \rm C$

Step-by-step explanation:

we would like to integrate the following Integral:

$\displaystyle \int 5 {x}^{4} \, dx$

well, to get the constant we can consider the following Integration rule:

$\displaystyle \int c{x} ^{n} \, dx = c\int {x}^{n} \, dx$

therefore,

$\displaystyle 5\int {x}^{4} \, dx$

recall exponent integration rule:

$\displaystyle \int {x} ^{n} \, dx = \frac{ {x}^{n + 1} }{n + 1}$

so let,

$n = 4$

Thus integrate:

$\displaystyle = 5\left( \frac{ {x}^{4+ 1} }{4 + 1} \right)$

simplify addition:

$\displaystyle = 5\left( \frac{ {x}^{5} }{5} \right)$

reduce fraction:

$\displaystyle = {x}^{5}$

finally we of course have to add the constant of integration:

$\displaystyle \boxed{ {x}^{5} + \rm C}$

hence,

our answer is D)

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2 years ago

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ICE Princess25 [194]

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3 years ago

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oee [108]

Answer:

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Explanation:

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3 years ago

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EleoNora [17]

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2 years ago

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GalinKa [24]

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