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trasher [3.6K]
2 years ago
11

A stereo normally priced at $399 is on sale for 15% off. Find the discount and the sale price.

Mathematics
1 answer:
ankoles [38]2 years ago
5 0
Answer
Discount:$59.85
Sales price:$339.15

Multiply$399 by 15% or 0.15 to get the discount of 59.85 and subtract 399 by discount to get sales price.
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Which expression has a value that is equivalent to 5n+13 when n= -5
maks197457 [2]

Answer:

Option A is correct.

4n + 8 expression which has a value that is equivalent to 5n+13 when n = -5

Step-by-step explanation:

Given the expression: 5n + 13

If n = -5

then, by substituting in given expression we get;

5(-5)+13 = -25+13 = -12

Option A:

4n + 8

Substitute the value of n = -5 we have;

4(-5) + 8 = -20 + 8 = -12

Option B:

2n + 2

then;

2(-5) + 2 = -10 + 2 = -8

Option C :

n^2+13

then;

(-5)^2+13 = 25 + 13 = 38

Option D:

n + 8

then;

-5 + 8 = 3

Therefore, only option A has expression which has a value that is equivalent to 5n+13 when n = -5


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