Antwoorde kan gekontroleer word met 'n sakrekenaar. 1. Druk elk van die volgende as 'n koers uit: \( \begin{array}{lll}\text { 1.I. } 3 \text { hoenders kos } \mathrm{R} 123 & 1.2 & \text { plant } 300 \text { bome in } 25 \text { rye } \\ \text { 1.4. } 20 \text { sekondes om } 8 \text { sectls te plak } & 1.5 & \text { tik } 600 \text { woorde in } 5 \text { minute } \\ \text { 2. Twee dorpe is } \mathbf{4 2 0 k m} \text { van mekaar. Op ' } \mathbf{n} \text { kaart is hul } \mathbf{2 8 m m} \text { van mekaar. Bereken }\end{array} \) 1.6

Let's solve each of the problems step by step, expressing them as rates. ### 1.1: Cost of Chickens We know that 3 chickens cost R123. To find the cost per chicken, we can use the formula: \[ \text{Cost per chicken} = \frac{\text{Total cost}}{\text{Number of chickens}} = \frac{123}{3} \] ### 1.2: Planting Trees We have 300 trees planted in 25 rows. To find the number of trees per row, we can use the formula: \[ \text{Trees per row} = \frac{\text{Total trees}}{\text{Number of rows}} = \frac{300}{25} \] ### 1.4: Time to Stick Seals It takes 20 seconds to stick 8 seals. To find the time taken per seal, we can use the formula: \[ \text{Time per seal} = \frac{\text{Total time}}{\text{Number of seals}} = \frac{20}{8} \] ### 1.5: Typing Words If 600 words are typed in 5 minutes, we can find the typing speed in words per minute: \[ \text{Words per minute} = \frac{\text{Total words}}{\text{Total time in minutes}} = \frac{600}{5} \] ### 1.6: Distance on a Map Two towns are 420 km apart, and on a map, they are 28 mm apart. To find the scale of the map (in km per mm), we can use the formula: \[ \text{Scale} = \frac{\text{Distance in km}}{\text{Distance in mm}} = \frac{420}{28} \] Now, let's calculate these values. I will perform the calculations for each of these expressions. Calculate the value by following steps: - step0: Calculate: \(\frac{600}{5}\) - step1: Reduce the numbers: \(\frac{120}{1}\) - step2: Calculate: \(120\) Calculate or simplify the expression \( 300/25 \). Calculate the value by following steps: - step0: Calculate: \(\frac{300}{25}\) - step1: Reduce the numbers: \(\frac{12}{1}\) - step2: Calculate: \(12\) Calculate or simplify the expression \( 123/3 \). Calculate the value by following steps: - step0: Calculate: \(\frac{123}{3}\) - step1: Reduce the numbers: \(\frac{41}{1}\) - step2: Calculate: \(41\) Calculate or simplify the expression \( 420/28 \). Calculate the value by following steps: - step0: Calculate: \(\frac{420}{28}\) - step1: Reduce the numbers: \(\frac{15}{1}\) - step2: Calculate: \(15\) Calculate or simplify the expression \( 20/8 \). Calculate the value by following steps: - step0: Calculate: \(\frac{20}{8}\) - step1: Reduce the fraction: \(\frac{5}{2}\) Here are the calculated rates for each of the problems: ### 1.1: Cost of Chickens The cost per chicken is: \[ \text{Cost per chicken} = \frac{123}{3} = 41 \text{ R} \] ### 1.2: Planting Trees The number of trees per row is: \[ \text{Trees per row} = \frac{300}{25} = 12 \text{ trees} \] ### 1.4: Time to Stick Seals The time taken per seal is: \[ \text{Time per seal} = \frac{20}{8} = 2.5 \text{ seconds} \] ### 1.5: Typing Words The typing speed is: \[ \text{Words per minute} = \frac{600}{5} = 120 \text{ words/minute} \] ### 1.6: Distance on a Map The scale of the map is: \[ \text{Scale} = \frac{420}{28} = 15 \text{ km/mm} \] These results provide the rates for each of the scenarios presented. If you have any further questions or need additional calculations, feel free to ask!