8. 4:12
9. 213:193
Explanation:
100 (# of 5th grade boys) - 7 = 93 (# of 6th grade boys)
100 + 93 = 193 (total # of boys)
93 (# of 6th grade boys) + 10 = 103 (# of 6th grade girls)
110 + 103 = 213 (total # of girls)
213:193
10. a. 1:11 -- b. [tex]\frac{1}{11}[/tex] c. no because 11 is greater than 1, so there are more students than teachers. (then again the total amount of teachers at the school wasn't provided so i dunno)
11. a. 1:[tex]\frac{1}{2}[/tex] -- no, it's not the correct ratio because when cooking rice you should always have more water than rice, since the rice absorbs a lot of water.
12. a. 3:5 -- b. yes because the amount of wins + losses = 5 so there was a total of 5 games
