Answer:
150 blue marbles
Step-by-step explanation:
Hello!
If 1/2 of the marbles are yellow, and 1/8 of the marbles are red, then 3/8 of the marbles should be blue.
The percentages are as given:
- Yellow = 50%
- Red = 12.5%
- Blue = 37.5%
To calculate the possible number of blue marbles out of the 400 marbles, we can find 37.5% of 400, as there is a 37.5% chance of getting blue for each turn.
Calculate
- 37.5% of 400
- 0.375 * 400
- 150
Helen should expect to pick out 150 blue marbles.
