Last week’s and this week’s low temperatures are shown in the table below.

Low Temperatures for 5 Days This Week and Last Week
Low Temperatures
This Week (Degrees Fahrenheit)

4

10

6

9

6
Low Temperatures
Last Week (Degrees Fahrenheit)

13

9

5

8

5

Which measures of center or variability are greater than 5 degrees?

the mean of this week’s temperatures
the mean of last week’s temperatures
the range of this week’s temperatures
the mean absolute deviation of this week’s temperatures
the mean absolute deviation of last week’s temperatures

Step-by-step explanation:

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation:

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40