The correct answer is the 3rd choice:
4/12 x 3/11
The explanation is that to start there are 12 total eggs of which 4 of them are boiled, so there is a 4/12 chance that the chef will get a hard boiled egg.
After removing one of the hard boiled eggs, there will be 3 hard boiled eggs remaining and one less total eggs (11).
To find the probability of getting a hard boiled egg both times, you multiply both probabilities together.
Hello!
You can distribute the -2
-2 * 5x = -10x
-2 * -0.75 = 1.5
The answer is -10x + 1.5
Hope this helps!
Hello There!
Since you are solving for C you would need to keep the variable c on one side to be able to determine the answer.
Start of by writing the equation.
3p +7c = p
As explained above move the numbers on the other side.
-3p + p = 7c
7c = -2p
Divide 7 in both sides to isolate the C.
Thus, the answer is
(5 + 7x + 6)/2 = 3x + 9
7x + 11 = 6x + 18
7x - 6x = 7
x = 7
EF = 3x + 9
= 3(7) + 9
= 21 + 9
= 30