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- Simultaneous Equations

Still Confused?

Try reviewing these fundamentals first

Still Confused?

Try reviewing these fundamentals first

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Get Started NowStart now and get better maths marks!

Get Started NowStart now and get better maths marks!

Get Started Now- Lesson: 15:36
- Lesson: 23:36
- Lesson: 34:14

Show me the money! In this lesson, we are going to solve some linear equations word problems that are related to money.

Basic Concepts: Applications of linear equations, Solving systems of linear equations by graphing, Solving systems of linear equations by elimination, Solving systems of linear equations by substitution

Related Concepts: System of linear equations, System of linear-quadratic equations, Graphing systems of linear inequalities

- 1.Andy is paid based on a base salary plus commission for selling furniture. One week he sold $5000 worth of furniture and was paid $550, another week was paid $450 on sales of $3500.

a) What is the rate of commission Andy earns?

b) What is his weekly base salary?

c) How much he earn if he sold $7000 dollars worth of furniture one week? - 2.Tickets are sold at $20 for adults and $10 for students. If the revenue from ticket sales was $12000 and 740 people attended the play; how many adult tickets were sold?
- 3.The cost to insure jewellery is a fixed amount plus a percentage of the value of the jewellery. It costs $32 to insure $1000 worth of jewellery or $44.50 to insure $3500 worth of jewellery. What is the fixed amount to insure jewellery?

9.

Simultaneous Equations

9.1

Determining number of solutions to linear equations

9.2

Solving simultaneous linear equations by graphing

9.3

Solving simultaneous linear equations by elimination

9.4

Solving simultaneous linear equations by substitution

9.5

Money related questions in linear equations

9.6

Unknown number related questions in linear equations

9.7

Distance and time related questions in linear equations

9.8

Rectangular shape related questions in linear equations

9.9

Simultaneous linear-quadratic equations

9.10

Simultaneous quadratic-quadratic equations

9.11

Solving 3 variable simultaneous equations by substitution

9.12

Solving 3 variable simultaneous equations by elimination

9.13

Solving 3 variable simultaneous equations with no or infinite solutions

9.14

Word problems relating 3 variable simultaneous equations

We have over 1640 practice questions in AU Maths Extension 1 for you to master.

Get Started Now9.1

Determining number of solutions to linear equations

9.3

Solving simultaneous linear equations by elimination

9.4

Solving simultaneous linear equations by substitution

9.5

Money related questions in linear equations

9.6

Unknown number related questions in linear equations

9.7

Distance and time related questions in linear equations

9.8

Rectangular shape related questions in linear equations

9.9

Simultaneous linear-quadratic equations

9.10

Simultaneous quadratic-quadratic equations