Math Test Quiz Scores: 16, 20, 22, 25, 25, 20, 15, 18, 19, 20, 23, 17 Find the Median.

The median is 20.

Step-by-step explanation:

16, 20, 22, 25,25, 20, 15, 18, 19, 20, 23, 17  

To find the median you need to rearrange the numbers form least to greatest and the median is going to be the middle number.

15,16,17,18,19,20,20,20,22,23,25,25   Now we could see that the there are two middle numbers which is 20 and 20  

Add them up and divide it by two.

20+ 20  =  40 /2 = 20

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6