Raig ran the first part of a race with an average speed of 8 miles per hour and biked the second part of a race with an average speed of 20 miles per hour. the entire two-part, 15-mile race took him 1.125 hours to complete. which table correctly represents his rates, times, and distances for each part of the race? asap nickel

Hi Jd444976,

Answers to find in the answer graph.

Distance for each sport:

He Ran 5 Miles

He Rode Bike For 10 Miles.

Time It took to do each sport:

Running - 5 / 8 = 0.625 =  37.5 minutes

Cycling - 10 / 20 = 0.5 = 30 minutes

0.625 + 0.5 = 1.125 = 67.5 minutes

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺

i dont know

step-by-step explanation:

umm. i dont know