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Viefleur [7K]
3 years ago
10

$30 board game on sale for $20.10

Mathematics
1 answer:
VMariaS [17]3 years ago
6 0
Ok so to solve for percent off
percent off means discount


so therefor we need to find how much was discounted
30-20.10=9.90

so we see that 9.90 was discounted
to find the percent we do
discount/total=percent discount
9.90/30=0.33

percent means parts out of 100
0.33/1 times 100/100=33/100=33%

answer is 33% discout
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The perimeter of a rectangle is 158 cm. If the length is 7 more than 3 times the width:
Goryan [66]
Width of rectangle = x
Length =3x+7
Perimeter of rectangle = 158cm
2(l+w)=158
2(3x+7+x)=158
2(4x+7)=158
8x+14=158
8x=158-14
x=144/8
x=18
Therefore the width of the rectangle is 18cm
Length=3x+18+7
54+7=61cm
Area=lxw
=61x18
=1098^2
8 0
2 years ago
What is the measure of an interior angle of a regular 12-gon?
gavmur [86]

Answer:

The measure of an interior angle of a regular 12-gon is 150°.

Hence, option 'C' is correct.                          

Step-by-step explanation:

We need to determine the measure of an interior angle of a regular 12-gon.

  • We know that the number of sides in a regular 12-gon = n = 12

Thus,

Using the formula to determine the measure of an interior angle of a regular 12-gon is given by

(n - 2) × 180° = n × interior angle

substitute n = 12

(12 - 2) × 180 = 12 × interior angle

10 × 180 = 12 × interior angle

Interior angle = (10 × 180) / 12

                      = 1800 / 12

                      = 150°

Therefore, the measure of an interior angle of a regular 12-gon is 150°.

Hence, option 'C' is correct.                          

4 0
2 years ago
Plsplsplsplsplsplspls help!!!!!!!!
True [87]

Answer:

1. My estamite, close to -1

2. 1.5

3. Remote interior angles

4. 84

5. 60 degrees

Step-by-step explanation:


5 0
3 years ago
___________is an expected error based only on the observations limited to a sample taken from a population
IgorLugansk [536]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>1. Sampling error</em>

▹ Step-by-Step Explanation

A sampling error is an error in statistics. This means that not the whole population is given a chance to be sampled, which results in this error.

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

━━━━━━━☆☆━━━━━━━

3 0
3 years ago
Carlos's credit card has an APR of 14.78% and a grace period of 18 days, and Carlos pays his balance in full every month. If his
zhannawk [14.2K]
If Carlo’s last billing cycle ended on March 28, 2010, and he made his payment on April 13, 2010, he didn’t owe any interest on his last statement's balance because he paid within the grace period. <span>I hope this helps and if you have any further questions, please don’t hesitate to ask again.</span>
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2 years ago
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