Consider the system. braceleftze 6x − 3y = 75 x + 3y = −12 Part 1 out of 2 Complete the description for three different substitution methods that can be used to solve this system. Solve the second equation for x (x = 9 − 3y) and then substitute the value into the first equation. Solve the first equation for y (y = 2x − 25 ) and then substitute that value into the second equation. Solve either equation for 3y (3y = -21 − x or 3y = 6x − 75 ) and then substitute that value into the other equation.

gu h-onarach tha mi a ’miannachadh gum b’ urrainn dhomh do chuideachadh, ach tha feum agam air puingean airson mo cheistean fhìn duilich!

Step-by-step explanation:

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.