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Shkiper50 [21]
2 years ago
6

A computer technician charges $60 for coming to your house plus $76 per hour for labor. If the total bill for repairs is $269, h

ow long did the work take?
Mathematics
1 answer:
zhuklara [117]2 years ago
7 0

Answer:

2\frac{3}{4} or 2.75, depending on what you need.

Step-by-step explanation:

  1. Subtract $269 by the service fee ($60). This will be $209.
  2. Divide $209 by $76 to calculate hours. This will be 2.75.
  3. (optional) We know that 0.75 is \frac{3}{4}, so let's take 2.75 and convert it into 2\frac{3}{4}. This is your answer.

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Step-by-step explanation:

Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Take each number in the data set, subtract the mean, and take the absolute value. Then take the sum of the absolute values. Now compute the mean absolute deviation by dividing the sum above by the total number of values in the data set. The mean absolute deviation, MAD, is 2.

\frac {1}{n} \sum \limits_{i=1}^n |x_i-m(X)|

m(X) = average value of the data set

n = number of data values

x_i = data values in the set

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