A litre of oil has a mass of 750 g . A litre of water has a mass of 1 kg . W is the ratio of the masses of oil to water? Johanna has R125 in her purse. She uses R25 for transport, keeps R20 t save in the bank and buys groceries with the rest. Write the ratio in its simplest form for Johanna's transport: savings:groceries. When Ayanda travels to school, she runs 800 m to the bus stop, travel 4 km by bus, and then walks 200 m from the bus stop to school. Write its simplest form the ratio for running: travelling: walking.

To find the ratio of the masses of oil to water, you first need to convert the masses into the same units. The mass of oil is 750 g, and the mass of water is 1000 g (1 kg). The ratio can be expressed as 750:1000, which simplifies to 3:4 when divided by 250. Now, for Johanna's financial breakdown, she spends R25 on transport, saves R20, and uses the remaining R80 for groceries (R125 - R25 - R20 = R80). The ratio for her expenditures is 25:20:80, which simplifies to 5:4:16 when divided by 5. When it comes to Ayanda's journey to school, we can break down the distances into the total running, travelling, and walking. Running is 800 m, travelling is 4 km (or 4000 m), and walking is 200 m. The ratio looks like this: 800:4000:200, which simplifies to 2:10:0.5. To convey it in whole numbers, we can multiply through by 2 to get 4:20:1. Feel free to ask anything else!