How do you wright this in an equation? 1 hour has 3 20 minutes intervals you multiply 3 (20's in a hour) by 3 (total hours) gets you 180 then you add the starting number which gets you 220

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.