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Vinil7 [7]
3 years ago
9

A CD player that regularly sells for $79.00, but is on sale for $67.15. What percent off is the sale price?

Mathematics
1 answer:
Aneli [31]3 years ago
7 0

Answer:

I belive it is 15% off.

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Darren and barb each tried to evaluate 6(2) + 4 ÷ 2 who elaluated the expression correctly?
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Answer:

14

Step-by-step explanation:

6(2)

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4÷2

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Cheyenne is playing a board game. Her score was −220 at the start of her turn, and at the end of her turn her score was −390. Wh
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So -390 -- 220 = -170

That was the change between the beginning and end of the turn.
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I don't really understand this can someone explain this to me
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Find the measure of the arc or angle. 

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3 years ago
What is the product of 7×-6 1/8
MAVERICK [17]

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2 years ago
Ask Your Teacher Equal amounts are invested at 2%, 7%, and 9% annual interest. If the three investments yield a total of $828 an
Nookie1986 [14]

Answer:

$4600

Step-by-step explanation:

Write an equation to represent the problem.

Interest is calculated by multiplying the interest rate with the investment. <u>Multiplying each of the rates</u> (2%, 7% and 9%) <u>in decimal form with the investment amount is equal to the annual interest</u>, (828).

Convert a percentage to decimal form by dividing by 100:

2% ÷ 100 => 0.02

7% ÷ 100 => 0.07

9% ÷ 100 => 0.09

let "P" represent the amount of money for the total investment

0.02P + 0.07P + 0.09P = 828

Use the equation to solve for "P". Simplify by collecting like terms (numbers that have the same variable) then isolate "P" by moving the other numbers to the right side. To move a number to the other side, do it's reverse operation to both sides of the equation. (The reverse of multiplying is dividing).

0.02P + 0.07P + 0.09P = 828        Collect like terms

0.18P = 828        Isolate "P"

0.18P/0.18 = 828/0.18        Divide both sides by 0.18

P = 828/0.18         "P" is isolated because 0.18 cancelled out. Simplify.

P = 4600        Total investment

Therefore the total investment is $4600.

5 0
3 years ago
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