Katie works as a waitress and records her monthly tips in the table shown below. if katie decided not to work the month of november, how would her five month average compare to her six month average for monthly tips? june july august septemper october november $133.45 $235.31 $239.45 $258.87 $298.45 $115.67 a. her monthly average would have decreased by $19.57. b. her monthly average would have increased by $19.57. c. her monthly average would have increased by $2.07. d. her monthly average would have decreased by $2.07.

a. Her monthly average would have decreased by $19.57.

Step-by-step explanation:

To find out how not working on November would affect the average of Katie's tips, we first need to find the average of her working June until October only.

Average = 133.45 + 235.31 +239.45 + 258.87 + 298.45/5

Average = 1165.53 / 5

Average = $233.10

Now let's find out what her average is with the month of November.

Average = Average = 133.45 + 235.31 +239.45 + 258.87 + 298.45 + 115.67/6

Average = 1281.2 / 6

Average = 213.53

So now we can compare both averages.

233.10 - 213.53 = $19.57

We know that her average will decrease because 213.53 < 233.10.

Her average will decrease by $19.57.

Correct answer is B.) Her monthly average would have increased by $19.57.

Step-by-step explanation:

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation

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