### 1.1.1 Define the term income
Income refers to the money received by a person or organization for providing services or selling goods. In this context, income is the amount of money Kevin earns from washing cars over the weekends.
### 1.1.2 Complete the following formula to calculate the income received per car washed.
To calculate the income received per car washed, you need to find the product of the number of cars washed and the rate per car (which is the earnings for each car washed).
Income [tex]\( (\text{in Rand}) = \text{Number of cars washed} \times \text{Rate per car} \)[/tex]
Given the data from June:
- Number of cars washed in June = 11
- Income in June = 495 Rand
You can compute the rate per car as:
[tex]\[ \text{Rate per car} = \frac{\text{Income}}{\text{Number of cars washed}} \][/tex]
[tex]\[ \text{Rate per car} = \frac{495}{11} = 45 \text{ Rand/car} \][/tex]
Therefore, the completed formula is:
Income [tex]\( (\text{in Rand}) = \text{Number of cars washed} \times 45 \)[/tex]
This indicates that Kevin earns 45 Rand for each car he washes.
From the rate per car (45 Rand/car), we can fill in the missing values:
1. August (Number of Cars):
- Income in August = 1170 Rand
- Rate per car = 45 Rand
[tex]\( \text{Number of cars washed in August} = \frac{Income}{Rate per car} = \frac{1170}{45} = 26 \)[/tex]
2. October (Income):
- Number of cars washed in October = 20
- Rate per car = 45 Rand
[tex]\( \text{Income in October} = \text{Number of cars} \times \text{Rate per car} = 20 \times 45 = 900 \text{ Rand} \)[/tex]
So the answers are:
- A (Number of cars washed in August) = 26
- B (Income in October) = 900 Rand
