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Amiraneli [1.4K]
2 years ago
15

Find the original price of a salt lamp that is $84 after a 25% discount.

Mathematics
2 answers:
iren [92.7K]2 years ago
5 0

Answer:

Step-by-step explanation:

to find the original price we will divide the known price by (1-discount)

original price= 84/(1-0.25)=84/0.75=112.00

the lamp was 112

gulaghasi [49]2 years ago
4 0

Answer:

112

Step-by-step explanation:

=112.0

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  the comparison must be reversed when multiplying by a negative

Step-by-step explanation:

The rules of equality apply to solving inequalities, with the exception that multiplication or division by a negative number reverses the sense of the comparison:

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Effectively, multiplication (or division) by a negative number is equivalent to reflection across the origin. Things that were ordered left/right (on the number line) are ordered right/left after such a reflection:

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<em>Additional comment</em>

Application of any function requires that you pay attention to ordering. Some functions naturally reverse the order; others do so only on specific domains.

Consider f(x) = 1/x.

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Probably the most commonly encountered function used with inequalities is the absolute value function.

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A farm stand wants to sell fruit to local grocery stores in packages with
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