Prob of selected students times prob of selecting boys times prob of selecting 3 boys
total students = 15b + 30g = 45 students
1. 10s/45t = 0.22
2. 15b/45t = 0.33
3. 3b/15b = 0.2
0.22×0.33×0.2=0.0148
1.48%
I'm not sure 100%... double check answer please
Answer:
1. 50-x
2. 2x+189
3. x+109
4. x+99
5. x*(76-39)
6. 75+x
7. 45-3x
8. 2x+15
9. 3x-25
10. x*(x+88)
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
The circumference of a circle is , so . We can use this because the area of a circle is . Thus, .
5,12,13
5X5=25
12X12=144
25+144=169
answer: square root 169=13