Plz help i beg i will give brainlist and 20 points alex tried to find the value of y. FIND HIS ERROR AND CORRECT IT.

His equation is correct but his calculations are incorrect.

Step-by-step explanation:

180-40=140 so y=140

Hope this helps!

Alex subtracted incorectly.

y + 40 = 180

180 - 40 = 140 not 120

so y = 140

brainlist please

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.

22 dimes and 9 nickels

step-by-step explanation: