Question

the gasoline gauge on a van initially read 1/3 full when 10 gallons were added to the tank the gauge read 3/4 full how many more gallons are needed to fill the tank?

Answer 1

ok, best way to solve these is to use algebra.

so lets call the capacity of the tank c gallons.

this means that initially the tank contained c/3 gallons as it was 1/3 full.

ok so far?

Answer 2

yes :)

Answer 3

good, you are then told that when 10 gallons are added it become 3/4 full.

Answer 4

this translates to:

3c/4 = c/3 + 10

Answer 5

agreed?

Answer 6

yes

Answer 7

ok, so now you just need to solve this equation - do you know how?

Answer 8

kinda

Answer 9

why don't you have a go and I'll help if you get stuck