Posted by LimaBeans93 on Sunday, January 29, 2012 at 5:45pm.
1. Solve these systems of equations
a. 3x + 6y + 3z= 3
2x  y + 4z= 14
x + 10y + 8z= 8
b. x + y + 3z= 10
x + 2y + 3z= 4
x + 4y + 3z= 6
2. Solve these systems of equations word problems.
a. A movie theater sold 450 tickets to a movie. Adult tickets cost $8 and children's tickets cost $6. If the theater took in a total of $3,250 from ticket sales, how many of the tickets were adult tickets and how many were children's tickets?
b. Bond A pays interest of 8% per year. Bond B pays interest of 10% per year. You are to invest a total of $100,000 and earn exactly $9,500 interest per year. How much should you invest in Bond A and in Bond B? (round to the nearest cent)
c. At a certain college, all courses are either 3credit courses or 4credit courses. Suppose a student has taken 16 course and has 53 credits. How many 3credit courses and how many 4credit courses has the student taken?

COLLEGE MATH SYSTEMS OF EQUATIONS  drwls, Sunday, January 29, 2012 at 9:46pm
This is not a homework dropoff service. If you expect to learn high school algebra in college, it's time you made an effort.

COLLEGE MATH SYSTEMS OF EQUATIONS  LimaBeans93, Sunday, January 29, 2012 at 9:52pm
WOW. I know high school algebra. I am in the highest math class that freshman could even be in. I did all of the problems but those were tricky for me sir. I started them all but got stuck and I have proof. You shouldn't even respond if you're not going to offer any relevant help.

COLLEGE MATH SYSTEMS OF EQUATIONS  LimaBeans93, Sunday, January 29, 2012 at 9:59pm
And also I was in a gifted program in high school and graduated with a math average of a 97.37. I made more than an effort and can prove it. Before you assume know the facts.

COLLEGE MATH SYSTEMS OF EQUATIONS  john, Saturday, September 15, 2012 at 10:23am
a. A movie theater sold 450 tickets to a movie. Adult tickets cost $8 and children's tickets cost $6. If the theater took in a total of $3,250 from ticket sales, how many of the tickets were adult tickets and how many were children's tickets?