Ms. Sanchez took a trip in May. She paid $2.70 per gallon of gasoline while on the trip. She filled his van four times over the trip. The amounts she bought were: 13.084 gallons, 13.784 gallons, 12.804 gallons, and 13.331 gallons. a. How much gasoline did she buy on the trip? Explain your reasoning.

b. What was her total cost for gasoline on the trip? Explain your reasoning.

c. Her odometer (which measures distance traveled) read 25,421.1 miles when she pulled out of his driveway and 27,809.4 miles when she returned. How many miles did he travel on the trip? Explain.

v: l•w•h÷2.

v: 20•6•8 ÷2

v: 960÷2

v: 480

yes

yes yes yes

x

step-by-step explanation:

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 ☺