Ryan's car consumes on an average 128 fl oz of gas to run 20 miles if ryan wants to go on a trip of 400 miles how many gallons of gas will he need?

20 gallons

Step-by-step explanation:

128 times 20 = 2,560 fl oz

convert fl oz to gallons

10 fl oz = 0.078125 gallons

100 fl oz = 0.78125 gallons

1,000 fl oz = 7.8125 gallons

multiply 7.8125 by 2 to get 15.625

multiply 1,000 by 2 to get 2,000

multiply 0.078125 by 6 to get 0.46875

multiply 10 by 6 to get 60

multiply 0.78125 by 5 to get 3.90625

multiply 100 by 5 to get 500

add all of the products to get the final sum

15.625 + 0.46875 + 3.90625 = 20 gallons

2,000 + 60 + 500= 2,560 fl oz

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

lo.lll

step-by-step explanation: