Answer:
5 hours
Step-by-step explanation:
Mark recieves 3mg per hour. This can be rewritten as y=3x. Cassie recieves 2x+5. To solve, use substitiution. 3x=2x+5. To solve, subtract "2x" from "3x." You then get x=5.
Answer:
a is equal to 3 ...................
First tossing a coin means the first has to be H or T.
Rolling a die means the second has to be a 1-6.
The only option that meets this criteria is LETTER A
Answer: u<6
Step-by-step explanation:
Isolate u by dividing both sides of the inequality by 7
Answer:
The augmented matrix for each set of linear equations is:
a)
Augmented matrix:
b)
Augmented matrix:
c)
Augmented matrix:
d)
Augmented matrix:
Step-by-step explanation:
In order to find the augmented matrix, you have to take the numeric values of each variable and make a matrix with them. For example, in the linear system a) you can make a matrix out of the numeric values accompanying x_1 and x_2, this matrix will be:
Then you have to make a vector with the constants in the linear equations, for the case of system a) the vector will be:
To construct the augmented matrix, you append those matrices together and create a new one: