Asection of road covers 18.3 square feet. each square foot will require 5.1 minutes to repair.
how many total minutes will it take to repair in the section of road?

It will take 93.33 minutes to repair in the section of road .

Step-by-step explanation:

1 square feet requires time to get repaired = 5.1 minutes

We are given that A section of road covers 18.3 square feet.

Now we are supposed to find How many total minutes will it take to repair in the section of road

So, 18.3 square feet requires time to get repaired =

                                                                                   =

So, it will take 93.33 minutes to repair in the section of road .

ddsf

step-by-step explanation:

dfs

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 ☺