Suppose you have a job teaching swimming lessons and get paid $8 an hour.
You also have a job as a cashier and get paid $10 an hour. If you cannot work
more than 22 hours a week, what are the number of hours you can work at
each job and still make at least $190?

20hours 5 hours in swimming and 15 hours as a cashier

if you are doing the swimming lessons then it will have to be 22 hours

and for the cashier you can do at least 19 hours

Step-by-step explanation:

because if you times £8 by 20 for 20 hours you only get £160

and then for the £10 you get the £200

and here i have tried 21 hours timed for the £8 and i got £160

and for the 22 hours you get £176

so basically dont do the swimming job do the cashier

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest