22.1 Setting up equations to solve problems

WALT

Set up your own equations and use them to solve worded problems.

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Slide 1: Slide

MathematicsSecondary Education

This lesson contains 10 slides, with interactive quizzes and text slides.

Items in this lesson

WALT

Set up your own equations and use them to solve worded problems.

Slide 1 - Slide

TASK A

Make an equation in terms of x and then solve it.

Slide 2 - Slide

If a number is subtracted from nine the result is -5.

Slide 3 - Open question

Three times the sum of a number and four gives 150

Slide 4 - Open question

A number is doubled and then six is added. When this is divided by four, the result is seven. What is the number?

Slide 5 - Open question

TASK B

Solving more complex problems

Slide 6 - Slide

A grandfather is six times as old as his grandson. If the grandfather was 45 when his grandson was born, how old is the grandson?

Slide 7 - Open question

A rectangle of perimeter 74 cm is 7cm longer than it is wide. What is the length of each side.

Slide 8 - Open question

Amira is twice as old as her cousin Pam. Nine years ago, their combined age was 18. What are their present age?

Slide 9 - Open question

The age of a man is 24 years more than his son. In two years, the father’s age will be twice that of his son. What are their present age?

Slide 10 - Open question