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Verizon [17]
2 years ago
5

The amounts spent by 5 students on back to school supplies are $28.50, $25.75, $23.60, $30.20, and $25.00. Jenny spends $41.13 f

or her supplies. If the amount Jenny spends is included in the data, how will the mean be affected?
A) The mean decreases by $3.55
B) The mean increases by $2.42.
C) The mean increases by $2.54.
D) The mean increases by $1.55.
Mathematics
1 answer:
expeople1 [14]2 years ago
5 0
Answer:
B) The mean increases by $2.42

Btw. My answer was $2.40… B was the closest
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Here we want to have x on one side of equation so,
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2 years ago
Robert owns a doggy hotel. This is like a kennel but much fancier. Last friday the 14th he had 35 dogs that ate 3/8 of a pound o
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Answer:

the 7th

0.007805 or  59 / 756

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To determine the Friday that he needed more pounds, determine the number of pounds he needed per dog for each Friday.

to do this, divide the total pounds by the number of dogs

on the 14th

3/8 ÷ 35 =

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1/2 ÷ 27 =

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to determine which fraction is larger multiply each by 100 to determine its percent

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1/54 is larger. Thus, more pounds was needed on Friday the 7th

the difference between these fractions should be determined  

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3 years ago
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Answer:

  C.  y = -2/3x +22/3

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You can choose the correct answer by realizing that the line must have a y-intercept greater than 6. The given point is (2, 6) and the line goes up and to the left from there. The y-intercept is obviously more than 6.

The only reasonable answer choice is ...

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_____

There are a lot of ways to work problems like these. One is to write the equation of the line, then match that to the answer choices.

Another is to eliminate all the "impossible" answer choices, then choose the appropriate one from what's left. (The given line has a negative slope, eliminating choices A and B.)

I like to use the simplest method that will determine the correct answer. Here, that involves reading and understanding the question to obtain some idea of where the desired line must appear on the graph.

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