Michael has $2.25 worth of dimes and quarters. he has twice as many dimes as
quarters. write a system of equations that could be used to determine the number of
dimes and the number of quarters that michael has. define the variables that you use
to write the system.

25x+10x=$2.25

25=quarters and 10=dimes x is what we will plug in (how many coins Michael has for each type of coin) and $2.25 is how much money he has all together

Step-by-step explanation:

i used a money calculator and this is what it came too.

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.