4(5/8)= 2.5 squared feet per hour
Answer:
Probability of sum of pips on two faces is at least 9 =
Step-by-step explanation:
Experiment: Throwing two fair dice.
Total no of Outcome = = 36
Sample space (list of outcome) is attached.
Let E be the event that sum of pips on two faces is at least 9.
Favorable outcome are where sum is 9 , 10 , 11 and 12.
From Sample space, No. of Favorable outcome = 10
∴
Answer:
x=3
Step-by-step explanation:
distribute 3 into (x+2)
3x+6=x+12
move all the x variables to one side and all the numbers to another side
3x+6=x+12 -3x -3x
6=-2x+12
-12 -12
6-12=-2x
-6=-2x
isolate x by dividing everything by -2
-6/-2=-2x/-2
eliminate the -2 multiplying the x with the -2 dividing the -2x
-6/-2= x
x=3
15 groups
Step-by-step explanation:
boys can be split in 9 groups of 2 and the girls can be split in 6 groups of 2
adding this 9+6=15