Over the weekend, the all smiles run had 16,478 participants for the half marathon. the all smiles 10k had 6,924 participants, and the 5-mile walk had 3,067 participants. how many more people participated in the half marathon than in the 10k race and the 5-mile walk combined? a. 6,487 b. 6,587 c. 9,991 d. 12,621

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.