Jay needs 19 quarts more paint for the outside of his barn than for the inside if he uses 107 quarts in all how many gallons of paint will be used to paint the inside of the barn

Let's say q is the number of quarts he needs for the inside, which is what we're trying to find.
Then he needs 19 more quarts for the outside, so q + 19 is the number he needs for the outside.
Total, he needs 107 quarts to paint the inside and outside.

q + q + 19 = 107

2q = 107 - 19 = 88

q = 44 (quarts)

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.