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2 years ago

4

Andy spent 1/3 of his money on some pastries and 3/4 of his remaining money on 2 pies. Each pie cost 6 times as much as each pas

try. If all the pastries cost the same,how many pastries did he buy

1 answer:

elena-s [515]2 years ago

4 0

The pies were $12. So 12 divided by 6 is 2. So is Andy had $20 to start with, and each pastry was $2, Andy bought 4 pastries.

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The $120 repair bill included $36 for parts and rest for labor. What percent of the bill was for labor?

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Answer:

30%

Step-by-step explanation:

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2 years ago

Last year your professor wanted to study the pattern in class grades. The following table contains a sample of grades collected

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Answer:

mean = 78.4

median = 77.5

mode = 75

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Step-by-step explanation:

<u>Mean:-</u>

The mean (average) is found by adding all of the numbers together and dividing by the number of items and it is denoted by x⁻

mean = $\frac{64+80+75+98+75}{5}$

mean (x⁻ ) = 78.4

The mean of the given data = 78.4

<u>Median:</u>

The median is found by ordering the set from lowest to highest and finding the exact middle.

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<u>Mode :</u>

The mode is the most common repeated number in a data set.

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in data the most common number = 75

<u>Conclusion</u>:-

mean = 78.4

median = 77.5

mode = 75

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For the house A we have:
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f (10) = 124270 (1.04) ^ 10 = 183949.9573

For house B we have:
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Evaluating for 7, 8, 9 and 10 we have:
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f (10) = 114270 (1.05) ^ 10 = 186133.789

We observe that for years 7 and 8 the value of house A is greater than the value of house B.

Answer:
7 and 8

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