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goldenfox [79]
3 years ago
10

Can someone help me figure this out

Mathematics
1 answer:
Setler79 [48]3 years ago
5 0

Answer:

<h2>See the explanation.</h2>

Step-by-step explanation:

It is told that, 330 students that are surveyed, are 9th graders.

Hence, 0.55 represents 330 students, that is 1 represents \frac{330}{0.55} = 600 students.

The number of 9th grade students whose favorite elective is music is represented by 0.18.

1 ≡ 600

0.18 ≡600\times0.18 = 108.

The percentage of students whose favorite elective is home economics and are also in 10th grade is \frac{0.06}{1} \times100 = 6%.

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Maria drives 130 miles in 2 hours. If she keeps driving at the same speed without stopping, what is the total time it will take
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3 0
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A necklace regularly sells for $18.00. the store advertises a 15% discount. what is the sale price of the necklace in dollars
SSSSS [86.1K]
I can solve with 2 methods:

I. Because the discount is 15 % of 18 $ , the price will be (100-15=85) 85 % of 18 $
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II. The discount is 15 % of 18$
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then I decrease it from the regularly price
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Personally I believe the first is an easier method.
I hope you understand and you can apply this in every similary problem.



6 0
3 years ago
Please help me I need to answer in five minutes
zheka24 [161]
C, GHI because it is over 180 degrees and no triangle is over 180 degrees
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Hope I could help!
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