Pls help im timed!! To solve the system of linear equations 3x – 2y = 4 and 9x-by = 12 by using the linear combination method, Henry
decided that he should first multiply the first equation by -3 and then add the two equations together to eliminate the x-
terms. When he did so, he also eliminated the y-terms and got the equation 0 = 0, so he thought that the system of
equations must have an infinite number of solutions. To check his answer, he graphed the equations 3% – 2y = 4 and
9x-by = 12 with his graphing calculator, but he could only see one line. Why is this?
O because the system of equations actually has only one solution
because the system of equations actually has no solution
O because the graphs of the two equations overlap each other
because the graph of one of the equations does not exist

12

step-by-step explanation:

add a pic of the graph, then ill edit this "answer" and solve it for you : 3

step-by-step explanation:

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages