Answer:
z = 81/10 = 8.100
Step-by-step explanation:
I don't think you have the correct options. 9/12 + 6/12 = 15/12. To simplify, you divide each value by 3 and get 5/4, which, as a mixed number, would be 1 1/4, and neither 5/4 or 1 1/4 is an option. I hope this helps!
15/9=1.66666
9 is 10%of 90 so 9 x 1.6666 repeating=15
1.66666666x10=16.6!!!!!!!!!!
Answer:
35%
total number of 11th graders = 32+18 = 50
calculating percentage:
18÷50×100
= 36%
