Answer:
89/100
Step-by-step explanation:
The average weighted by the number of students is ...
(90(0.90) +10(0.80))/100 = (81 +8)/100 = 89/100
Answer:
165°
Step-by-step explanation:
11π/12 * 180/π = 1980π/12π
Reduce & Cancel: 165°
First make 20 into a fraction, then solve; 3/5 · 20/1. 60/5 = 12. Hope that helps!
The answer should be 242.75 cubic centimeters!!
