It takes one pipe 10 minutes to fill a tank with water. It takes a second tank 15 minutes to fill the tank. With both pipes open and the tank empty, how long will it take to fill the tank? please make a chart thank you

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

Check the internet ok that will