Mathematics, 29.12.2019 02:31 avaleasim
1. solve the system by graphing.
{ -2x = 2y - 4
{ 2x - y = -5
2. without graphing, is the system independent, dependent, inconsistent?
{ y = 2x - 8
{ 2x - y = 8
a. dependent
b. independent
c. inconsistent
3. what is the solution of the following system?
{ -2x - y = 1
{ -4x - 2y = -1
a. infinitely many solutions
b. no solution
c. (3,8)
d. (-3,-8)
4. solve the system of inequalities by graphing.
{ y is less than or equal to -4x - 1
{ y > 3x - 1
5. your club is baking strawberry and apple pies for a bake sale. they need at most 18 pies, and cannot have more than 12 apple pies. write and graph a system of inequalities to model this system.
a. let x = the number of strawberry pies. let y = the number of apples pies
{ x is more than or equal to 0
{ y is more than or equal to 0
{ x + y is more than or equal to 18
{ y is less than or equal to 12
b. { x is more than or equal to 0
{ y is more than or equal to 0
{ x + y is less than or equal to 18
{ y is less than or equal to 12
c. { x is more than or equal to 0
{ y is more than or equal to 0
{ x + y is less than or equal to 18
{ y is more than or equal to 12
d. { x is more than or equal to 0
{ y is more than or equal to 0
{ x + y is more than or equal to 18
{ y is more than or equal to 12
6. a rental car agency charges a flat fee of $110.00 plus $46.00 per day to rent a certain car. another agency charges a fee of $70.00 plus $54.00 per day to rent the same car.
using a graphing calculator, to find the number of days for which the costs are the same. round your answer to the nearest whole day.
7. solve the system by substitution.
{ -4.5x - 2y = -12.5
{ 3.25x - y = -0.75
8. solve the system using elimination.
{ 5x + 4y = 12
{ 3x - 3y = 18
9. the length of a rectangle is 9.7 cm more than 4 times the width. if the perimeter of the rectangle is 91.4 cm, what are it's dimensions?
Answers: 3
Mathematics, 20.06.2019 18:04
Jim is painting the inside of a circular helicopter pad. how many cans of paint would he need if the pad is 50 feet across and each can of paint covers about 200 ft2.
Answers: 3
Mathematics, 21.06.2019 16:50
What are the steps to solving the inequality 3b + 8 ≥ 14?
Answers: 1
Mathematics, 21.06.2019 21:00
Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?
Answers: 2
Mathematics, 21.06.2019 21:00
Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.
Answers: 1
1. solve the system by graphing.
{ -2x = 2y - 4
{ 2x - y = -5
2. without g...
{ -2x = 2y - 4
{ 2x - y = -5
2. without g...
Mathematics, 21.12.2020 17:10
Mathematics, 21.12.2020 17:10
English, 21.12.2020 17:10
Mathematics, 21.12.2020 17:10
Mathematics, 21.12.2020 17:10
Physics, 21.12.2020 17:10
English, 21.12.2020 17:10
Social Studies, 21.12.2020 17:10