Answer: The correct option is (B) 
Step-by-step explanation: We are given the following system of equations :
We are to find the equation that could be the result of using substitution to solve the above system.
Substituting the value of x from equation (i) in equation (ii), we get
Thus, the required equation is
Option (B) is CORRECT.
Answer: (0,-4)
You solve this with inverseoperations
Complete the equation of variation where y varies inversely as x and y = 0.125
when x=8
Answer:
.065
Step-by-step explanation:
The total number of marbles is
4 blue marbles+ 6 red marbles+ 3 yellow marbles+5 black marbles=18
P(1st black) = Black/total = 5/18
You keep the marble
The total number of marbles is
4 blue marbles+ 6 red marbles+ 3 yellow marbles+4 black marbles=17
P(2st black) = Black/total = 4/17
Multiply the probabilities together
P(black,black)= 5/18 * 4/17 =10/153=.065359477 =.065
The answer is 3. I hope this helps!
