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Lelechka [254]
2 years ago
6

Let p be the percent decrease in the price of a DVD recorder that is marked down from $500 to $400. Which proportion can be used

to compute p?
A. $500-$400/$400=p/100
B. $500-$400/$500=p/100
C. $400-$500/$500=p/100
D. $400-$500/$400=p/100
Mathematics
1 answer:
Effectus [21]2 years ago
3 0

The correct answer is C. $400-$500/$500=p/100.

The formula for percent change is as follows.

New - Old/ Old = Percent change.

With 500 being the old score, we would look for it to be subtracted and on the bottom. C is the only option that has that.

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Decrease in population is an exponential process, so the expression representing population will be,

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By substituting the values of r and x in the expression,

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If you want to find out the side length of a cube by its volume. Then simply just remove the ^3 by taking the cubic root (also written ^(1/3))

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