Answer:
70 students
Step-by-step explanation:
As, 30% Mike surveyed
And these 30% are 21 students
So 30% of X = 21
= 30/100 x X = 21
= 30X = 2100
So X = 2100/30
X = 70
So 70 students were surveyed
Answer:
2/3 + 3/5 = 19
15
= 14
15
≅ 1.266667
Step-by-step explanation:
Add: 2
3
+ 3
5
= 2 · 5
3 · 5
+ 3 · 3
5 · 3
= 10
15
+ 9
15
= 10 + 9
15
= 19
15
Answer:
380.13 m
Step-by-step explanation:
You first need to write down the Area formula for a circle which is A=pi x radius^2 .
So 11^2 x 3.1415...
121 x 3.1415... = 380.13 m
