Steve and elizabeth decide to become partners in a children's cooking school. they need $120,000 for the franchise.
they invest in a 3: 5 ratio, respectively. how much more did elizabeth invest than steve? explain how you determined
your answer.

$30,000

Step-by-step explanation:

If you add 3 and 5 together you will get 8

and if you divide 120000 by 8 you will get 15000

15 000 = 1 part

so if you multiply 15000 by 5

that will be 75 000

which is how much Elizabeth invested

then if you multiply 15000 by 3 then you will get 45000

Last of all if you minus 75000 by 45000

you will get 30000

which is the answer

$30,000

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.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8