Multiply the three numbers.
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:
8 %
Step-by-step explanation:
To find the percent of trees that are over 30 ft tall, take the number of trees that are over 30 ft tall over the number of tree
Percent = trees over 30 ft tall/ total number of trees
= 6/75
=.08
Change this to a percent by multiply by 100%
.08 * 100%
8 %