If you do it 144 times that is (3+9)*12
This means that 12 times 3 red and 9 blue counters will be chosen that means that 9 blue counters will be chosen 12 times. 9*12 is 108.
This means blue counters will be chosen 108 times.
This can be checked as 108/3 would give you the number of red counters which is 36 and 108+36 is 144
Answer:
9/20
Step-by-step explanation:
0.45=45/100=9/20
the sequence is 4n-13, so substitute 107 into n and it will become 4(107)-13 =415
Thats either 7/5 or 1 2/5 but since theres a whole number i think its 1 2/5
