1. Direct Proportion Tuesday, 16 July 2019
Unitary Methods
Direct Proportion
Tuesday, 16 July 2019

2. Example
If 9 meals cost £80.55 , find the cost of 4 meals

3. Example
If it takes 12 minutes to travel 18 miles, find the distance travelled in 15 minutes.

4. Calculate the weight of the 30 cm piece of wire.
Example
A piece of wire is 25 cm long and has a weight of 6 grams. Another piece of the same wire is 30 cm long.
Calculate the weight of the 30 cm piece of wire.

5. Example
A car uses petrol at the rate of 5 litres for every 40 miles travelled. How many litres will it take to travel 130 miles?