COLLEGE MATH- SYSTEMS OF EQUATIONS

posted by .

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 3-credit courses or 4-credit courses. Suppose a student has taken 16 course and has 53 credits. How many 3-credit courses and how many 4-credit courses has the student taken?

  • COLLEGE MATH- SYSTEMS OF EQUATIONS -

    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 -

    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 -

    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 -

    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?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    solve the systems of equations x +2y=6 3x-2y=-22 is the answer y=-48 or is it y=5
  2. College Algebra

    solve systems of equations by graphing... I get how to graph and solve equations but i just don't understand why its coming out wrong u=v 4u=3v-3
  3. math

    how do i solve systems of three equations with elimination?
  4. Math

    3x + y = 3 x + y = 2 Solve the systems of equations. Options: x=1/2 y=3 x=3 y=1/2 x=1/2 y=3/2 x=3/2 y=1/2
  5. math

    solve the systems of equations by elimination. 6x-y=18 2x+y=7
  6. Algrebra-Systems of Equations

    The perimeter of a rectangle is 110cm. The length is 1cm more than twice the width. Write 2 equations that would be used to solve the system.
  7. Math 8 HELP!

    Multi-Step Equations Systems of Equations y = 2x - 4 y = x - 1 please help!!! :'(
  8. Math 8R - HELP!

    Multi-Step Equations Systems of Equations x + y = 0 5x + 2y = -3 this is what i got so far.... x + y = 0 ----> x = 0 - y 5x + 2y(0-y) = -3 please help!!!!
  9. math

    Solve the following systems of equations. 3x + 4y = 4 2x + y = 6
  10. Math

    Need help on writing a system of equations. I can figure it out without the systems but now sure how to write a systems of equations not knowing how many the box can hold. Dark chocolates cost $0.25 each and milk chocolates cost $0.15 …

More Similar Questions