The total number of marbles in the bag is 1 + 4 + 3 = 8
The probability of drawing one marble and getting blue is 4/8 = 1/2
Since marble is put back and he draws again, the probability will again be 1/2
The total probability = 1/2 * 1/2 = 1/4.
1/4 <<<<Answer
admins, pls delete this, I messed up and don't know how
20875.2 All you have to do is plug in the numbers to the equation.
<h2>
Average rate of lowering per minute = 36.67 ft/min</h2>
Step-by-step explanation:
After 10 minutes, the bell is at a depth of 600 ft
After 10 minutes
Depth of bell = 600 ft
After 40 minutes the bell is at a depth of 1,700 ft.
After 40 minutes
Depth of bell = 1700 ft
Time gap = 40 - 10 = 30 minutes
Depth fallen = 1700 - 600 = 1100 ft
We have
Depth fallen = Average rate of lowering per minute x Time gap
1100 = Average rate of lowering per minute x 30
Average rate of lowering per minute = 36.67 ft/min
Equation = 12 - -24 = ?
After keep, change, flip: 12 + 24 = ?
Answer = 36
