Writing simultaneous equations algebraically

Maths

Solving linear simultaneous equations algebraically

Let p be the number of protractors bought. If each protractor costs £2, which of the following represents the total amount spent on protractors (in pounds)?

Let p be the cost of a protractor. If I buy 3 protractors, which of the following represents the total cost?

Let p be the number of protractors bought and q be the number of rulers bought. Protractors cost 20 pence and rulers cost 15 pence each. What does 15q represent?

Let p be the number of protractors bought and q be the number of rulers bought. Protractors cost 20 pence and rulers cost 15 pence each. What does p+q represent?

Let p be the number of protractors bought and q be the number of rulers bought. Protractors cost 20 pence and rulers cost 15 pence each. What does 20p+15q represent?

The cost of 1 protractor is 30 pence. If I spent £2.70, how many did I buy?

A compass costs 50 pence. 8 protractors and 3 compasses costs £8.70. What is the cost of a protractor?

1 compass and 1 protractor costs £1.10. 2 compasses and 1 protractor costs £1.60. What is the cost of a compass?

If 10 compasses and 3 protractors cost £4.20. 10 compasses and 6 protractors cost £5.40. Find the cost of 1 protractor.

If 10 compasses and 3 protractors cost £4.20. 10 compasses and 6 protractors cost £5.40. Find the cost of 1 compass.

Writing simultaneous equations algebraically

Lesson outcome