Ocfening 1 1 Skyff elk van die volgende koerse op verskillende wyses. Vereenvoudig waar moontlik: 1.1750 appels : 10 kratte 1.2 R108: 6 salke aartappels 1.375 km : 25 min \( 1.418000 \mathrm{~W}: 3 \mathrm{~h} \) \( 1.5 \frac{\mathrm{R} 34}{4 \mathrm{~kg}} \) \( 1.6484 \mathrm{~km}: 32 \mathrm{l} \) 2 Watter van die volgende verteenwoordig nie 'n koers nie? Verduldelik. \( 2.1 \quad 85 \mathrm{~g} \) sout \( 2.260 \mathrm{~km} / \mathrm{h} \) \( 2.4 \quad 5 \ell / 10 \mathrm{~m} 2 \) 2.5320 minute 3 Skryf die koerse neer en voltooi: \( 2.3 \quad 11 \mathrm{Mbps} \) \( 2.67,4 \) l/100km 3.1 Afstandskoers: 240 km in \( 2 \mathrm{~h}=\ldots \mathrm{km} / \mathrm{h} \). 3.2 Betalingskoers: R9 600 per jaar \( =\mathrm{R} . \). . per maand. 3.3 Kostekoers: R31,90: 2 € melk \( =\mathrm{R} . . / \mathrm{l} \) melk. 3.4 Brandstofkostekoers: R161,00 per \( 20 \ell= \) R... : \( 1 \ell \) 3.5 Salariskoers: \( R 800 \) per week ( 5 dae) \( = \) R... /dag. 42 Hoofstuk 1 Getalle en berekeninge met getalle

Let's break down the problem step by step, addressing each part of the question. ### 1. Simplifying the Rates 1. **1.1750 appels : 10 kratte** - To find the rate of apples per crate, we divide the number of apples by the number of crates: \[ \text{Rate} = \frac{1.1750 \text{ appels}}{10 \text{ kratte}} = 0.1175 \text{ appels per crate} \] 2. **1.2 R108: 6 salke aartappels** - To find the cost per sack of potatoes: \[ \text{Rate} = \frac{R108}{6 \text{ salke}} = R18 \text{ per sack} \] 3. **1.375 km : 25 min** - To find the speed in km/h, we convert minutes to hours (25 min = 25/60 h): \[ \text{Rate} = \frac{1.375 \text{ km}}{25/60 \text{ h}} = \frac{1.375 \times 60}{25} = 3.3 \text{ km/h} \] 4. **1.418000 W : 3 h** - To find the power per hour: \[ \text{Rate} = \frac{1.418000 \text{ W}}{3 \text{ h}} = 0.47267 \text{ W/h} \] 5. **1.5 \(\frac{\mathrm{R} 34}{4 \mathrm{~kg}}\)** - To find the cost per kg: \[ \text{Rate} = \frac{R34}{4 \text{ kg}} = R8.5 \text{ per kg} \] 6. **1.6484 km : 32 l** - To find the distance per liter: \[ \text{Rate} = \frac{1.6484 \text{ km}}{32 \text{ l}} = 0.0514 \text{ km/l} \] ### 2. Identifying Non-Rates - **2.1 \( 85 \text{ g} \) sout**: This is a quantity, not a rate. - **2.2 \( 60 \text{ km/h} \)**: This is a rate (speed). - **2.3 \( 5 \text{ l}/10 \text{ m}^2 \)**: This is a rate (volume per area). - **2.4 \( 320 \text{ minute} \)**: This is a quantity, not a rate. ### 3. Completing the Rates 1. **3.1 Afstandskoers: 240 km in \( 2 \text{ h} \)** \[ \text{Rate} = \frac{240 \text{ km}}{2 \text{ h}} = 120 \text{ km/h} \] 2. **3.2 Betalingskoers: R9 600 per jaar** \[ \text{Rate} = \frac{R9600}{12 \text{ months}} = R800 \text{ per month} \] 3. **3.3 Kostekoers: R31,90: 2 € melk** \[ \text{Rate} = \frac{R31.90}{2 \text{ l}} = R15.95 \text{ per l} \] 4. **3.4 Brandstofkostekoers: R161,00 per \( 20 \text{ l} \)** \[ \text{Rate} = \frac{R161.00}{20 \text{ l}} = R8.05 \text{ per l} \] 5. **3.5 Salariskoers: R800 per week (5 dae)** \[ \text{Rate} = \frac{R800}{5 \text{ days}} = R160 \text{ per day} \] ### Summary of Results - 1.1750 appels : 10 kratte = 0.1175 appels per crate - 1.2 R108: 6 salke aartappels = R18 per sack - 1.375 km : 25 min = 3.3 km/h - 1.418000 W : 3 h = 0.47267 W/h - 1.5 \(\frac{\mathrm{R} 34}{4 \mathrm{~kg}}\) = R8.5 per kg - 1.6484 km : 32 l = 0.0514 km/l - Non-rates: 85 g sout, 320 minute - Completed rates: - 3.1: 120 km/h - 3.2: R800 per month - 3.3: R15.95 per l - 3.4: R8.05 per l - 3.5: R160 per day