Answer:
Third placer consumed 24 hot dogs.
Winner consumed 48 hot dogs.
Explanation:
Lets assume that the third runner up eats x hot dogs.
The total time for the contest is 15x seconds.
Given is that the winner ate (x+24) hot dogs
The winner's rate of eating is 1 hot dog per 7.5 seconds.
And we know the rate =
![(totaltime)/(number of hot dogs eaten)](https://img.qammunity.org/2020/formulas/mathematics/high-school/h8ec2q1rdqyyf52bqvkh15it23yvswsmzt.png)
We get;
![(15x)/(x+24) =7.5](https://img.qammunity.org/2020/formulas/mathematics/high-school/jf0o7kga412koy8u8jrtquenl06nj6w89e.png)
![(x+24)7.5=15x](https://img.qammunity.org/2020/formulas/mathematics/high-school/kxe3ge7mxxq8mxdpi436og59r1kyxaj0p0.png)
![7.5x+180=15x](https://img.qammunity.org/2020/formulas/mathematics/high-school/lhdkl00m79q86ufuvsozpv17yocq49n614.png)
![7.5x=180](https://img.qammunity.org/2020/formulas/mathematics/high-school/bpr557mquk42vnnpa3e14kgj19usqnz6h3.png)
x = 24 (third placer)
And the winner consumed
hot dogs.