Answer: number of adults = 3, number of children = 5
Step-by-step explanation:
let the number of adults be x, and the number of children be y.
x + y = 8 , 15x + 8y = 85
1st equation x 8 = 8x + 8y = 64

substitute x=3

Answer:
7.14
Step-by-step explanation:
Just use a calculator and type in the 
Answer:
630,200
just add the zeros smarty
10x -15 = 5
10x = 20
x = 2
This equation has one solution.
The solution would be x = 2
By difference, the percentage of people who are not sure who to vote is 100% - 45% - 38% = 17%. The number of people who have not yet decided to whom their votes goes is the product of 1,500 and 17% in its decimal equivalent.
(1,500) x (0.17) = 255
Therefore, 255 have not yet decided who to vote.