Question:
The probability of a certain brand of battery going dead within 15 hours is 1/3. Noah has a toy that requires 4 of these batteries. He wants to estimate the probability that at least one battery will die before 15 hours are up.1.Noah will simulate the situation by putting marbles in a bag. Drawing one marble from the bag will represent the outcome of one of the batteries in the toy after 15 hours. Red marbles represent a battery that dies before 15 hours are up, and green marbles represent a battery that lasts longer.How many marbles of each color should he put in the bag? Explain your reasoning.
Answer:
The number of marbles of each color that should be present in the bag is;
1 red marble and 2 green marbles
Step-by-step explanation:
Here, we note that the probability of a battery going dead = 1/3 and the
Therefore if the red marbles represent that a battery dies before 15 hours then the probability of picking the red marble should be 1/3. That is if there is only one red marble in the bag, the probability of picking the red will be 1/3 when there are other 2 green batteries in the bag
That is there should be 1 red marble and 2 green marble in the bag.
Yes because the perimeter of the bulletin is 23 feet. this is because to find perimeter you use 2(L)+2(W).
Ph will be equal to the sum of pn and nh. Thus:
ph = pn + nh
17 = pn + 12
pn = 5
nh = pn + hm
12 = 5 + hm
hm = 8 inches
Answer:
0.98 km/h
Step-by-step explanation:
Converting mi to km: 66*1.6 = 105.6 miles
Imani's average: 105.6 miles/ 90 min = 1.73 km/h
Abedi's average: 56 miles/ 75 min = 0.7466 ≈ 0.75 km/h
Difference: 1.73-0.75 = 0.98 km/h
Omg what level are you that is so hard
