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drek231 [11]
3 years ago
11

The rate of discount, R, can be determined using the formula, where P is the regular price of an item and D is the discount or a

mount saved off the regular price. Find the rate of discount on a sweater with a regular price of $39 that is on sale for $27. If necessary, round to the nearest hundredth.
A. 1.69
B. 0.31
C. 0.69
D. 1.31
Mathematics
1 answer:
astraxan [27]3 years ago
8 0

Answer:

B.0.31

Step-by-step explanation:

% of change = amount of change/original price

R=(P-D)÷P

39-27=12

12÷39=.307

≈.31

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Answer:

multiplying both-side of the equation by 3

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Step-by-step explanation:

To solve the equation p/3 = 12, we will follow the steps below;

first multiply 3 to both-side of the equation, that is:

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On the left-hand side of the equation, 3 at the numerator will cancel-out 3 at the denominator, leaving us with just p while on the right-hand side of the equation 12 will be multiplied by 3

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To check the correctness of the equation, we can substitute p = 36 back into the equation and then check, that is;

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This implies p = 36 is correct

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:
we know that
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