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Delvig [45]
2 years ago
10

A music store bought a CD set at a cost of ​$10. When the store sold the CD​ set, the percent markup was 30​%. Find the selling

price.
PLEASE EXPLAIN THXS HOOMAN
Mathematics
1 answer:
maria [59]2 years ago
3 0
The selling price is $13.

First, you multiply the percent by the original price. 
$10 *.30 = $3

Then, add the above answer to the original price to get the new selling price. 
$10 + $3 = $13


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harkovskaia [24]

Answer:

The answer is the fourth choice.

Step-by-step explanation:

The fourth choice is the only one that is supplementary.

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The measures, in degrees, of the three angles of a triangle are given by 2x+1, 3x - 3, and 9x. What is the
valentinak56 [21]

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Step-by-step explanation:

27 degrees

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3 years ago
A fossilized leaf contains 18% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as
Sati [7]

Answer: The age of the fossilized leaf is 13829 years.

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

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a = let initial amount of the reactant = 100

a - x = amount left after decay process = \frac{18}{100}\times 100=18  

a) for completion of half life:  

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{5600years}=0.00012years^{-1}

b) for finding the age

t=\frac{2.303}{0.00012}\log\frac{100}{18}  

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7 0
3 years ago
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Bond [772]

the boiling point of jet fuel is 329 degrees F. Rounded to the nearest degree, what is the temperature in degrees Celcius? Use the Formula: C = 5/9(F - 32), where C represents degrees celcius, and F represents degrees fahrenheit.

A). 165 degrees C

B). 183 degrees C

C). 201 degrees C

D). 535 degrees C

Solve:

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Simplify:

5/9

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Solve single variable:

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Therefore, Your answer would be, Letter Choice (A), (C = 165 degrees C

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4 0
3 years ago
When a number is increased by 8.2%, the result is 106. What is the original number to the nearest tenth?
ruslelena [56]

Answer:

Step-by-step explanation:

Let the original number = x

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x=98.0

x=98

4 0
2 years ago
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