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Butoxors [25]
2 years ago
7

You want to predict which candidate will likely be voted Seventh Grade Class President. There are 560 students in the seventh-gr

ade class. You randomly sample 3 different groups of 50 seventh-grade students. The results are shown.
Candidate Preference
Candidate A Candidate B
Sample 1 -27 23
Sample 2 -22 28
Sample 3 -15 35

Use each sample to make an estimate for the number of students in seventh grade that vote for Candidate A. Round your answer to the nearest whole number.

Sample 1: about ____ students

Sample 2: about ___ students

Sample 3: about ___ students

b. Who do you expect to be voted Seventh Grade Class President?
A. Candidate A
B. Candidate B

Explain.
Mathematics
1 answer:
Inga [223]2 years ago
7 0

Answer:

candidate b because it's mostly likely to have more people i think

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solmaris [256]

The correct answer is C) (5m^50 - 11n^8) (5m^50 + 11n^8)

We can tell this because of the rule regarding factoring the difference of two perfect squares. When we have two squares being multiplied, we can use the following rule.

a^2 - b^2 = (a - b)(a + b)

In this case, or first term is 25m^100. So we can solve that by setting it equal to a^2.

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b = 11n^8

Now we can use both in the equation already given

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Price-club sells a 12-ounce box of crackers for $2.59 and Shop Mart sells 1-pound box of crackers for $4.68. The unit price at P
Vesna [10]

Answer:

The unit price at Price-Club is $0.2158 per ounce.

The unit price at Shop Mart is $0.2925 per ounce.

Step-by-step explanation:

Price Club:

12-ounce box of crackers for $2.59

So

12 ounces - $2.59

1 ounce - x

12x = 2.59

x = \frac{2.59}{12}

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The unit price at Price-Club is $0.2158 per ounce.

Shop Mart:

1-pound box of crackers for $4.68.

1 pound is 16 ounces. So

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16x = 4.68

x = \frac{4.68}{16}

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The unit price at Shop Mart is $0.2925 per ounce.

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3 years ago
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