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sergey [27]
3 years ago
10

20% tip on a $30 hair cut

Mathematics
2 answers:
pshichka [43]3 years ago
7 0

Answer:

Step-by-step explanation:

Turn

Just turn the percentage into a decimal, in this case turn 20% into the decimal form .20.

Multiply

Multiply the decimal by the dollar.

.20 x 30 = 6$.

This applies to other questions similar to this. Turn the percentage into a decimal.

102% of 50$

102% = 1.02

1.02 x 50 = 51 $

3% of 8$

3% = 0.03

0.03 x 8 = 0.24 $

chubhunter [2.5K]3 years ago
5 0
$6 is 20% of a $30 haircut
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the hypotenuse of a 30-60-90 degree right triangle has a measure of 10. what is the measure of the shortest side
VARVARA [1.3K]

Answer:

5

Step-by-step explanation:

A 30-60-90 triangle's sides equal as follows:

Hypotanuse= x (a number)

Long side= x/2( also can be calculated as x* 1/2) * \sqrt{3}

Short side = x/2 or x * 1/2

5 0
3 years ago
When a cup of coffee at 100 degree Celsius cools down ,it loses 12%of its current temperature
polet [3.4K]

Answer:

Temperature after 10 minute = 27.9 degree Celsius

Step-by-step explanation:

Current temperature, P = 100 degree Celsius

% rate in temperature loses = 12% per minute = 0.12

Time,  t = 10 minutes

Temperature after t minutes ,

                                           = P ( 1 - r )^t\\\\=100( 1 - 0.12)^10\\\\=100(0.278500976)\\\\=27.85

                                           = 27.9 degree Celsius

4 0
3 years ago
Insert one pair of bracket to make this calculation correct .<br> 7 - 5 - 3 + 4 = 9
trasher [3.6K]
7-(5-3)+4=9 is the answer
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In the figure, a pair of parallel lines is cut by a transversal. What kind of angle are angles A and C?
kozerog [31]
<span>angles A and C are vertical angles

hope it helps</span>
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3 years ago
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3/4 divided by 12 as a fraction
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