Answer:
The probability is:

Step-by-step explanation:
Keep in mind that the probability of getting a head is always the same for each

Therefore the probability of not having a head is:

So if we throw the coin 4 times the probability P of not getting any head is:


Question
Find the least common multiple of 8 and 15.
Answer= 120
Answer:
15.8333333333
Step-by-step explanation:
9.5 divied by 3.5
Answer:
2 rides per hour
Step-by-step explanation:
she rode 18 rides in 9 hours
therefore rate at which she rides = 18/9 = 2
Answer:
2:3
Step-by-step explanation:
the ratio is simplified to 2:3