One pipe can fill a tank in 25 minutes while a larger pipe can fill it in 20 minutes.
1. What part of the tank can the smaller pipe fill in 1 minute?_____
2. What part of the tank can the larger pipe fill in 1 minute?_____
3. if we let x = the number of minutes it will take both pipes to fill the tank, then what part of the tank can both pipes fill in 1 minute?_____
4. If both pipes are open, what mathematical sentence best translates the problem?_____
5. If both pipes are open, how long will it take to fill the tank?_____​