Jacob is asked to solve the problem below: Kayla is 9 years older than twice Hannah's age. If the difference in their ages is 16, how old is Kayla? How old is Hannah?

Here is a system that represents the relationship:

k = 2h + 9

k - h = 16

Jacob finds Hannah's age to be 16 years. Is he correct?

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.