Page 9 - Mathematics Literacy Grade 11

1.3 Explain why the monthly payment to DSTV remains the same in all the
months.

2. Jabulani pays R1, 10 per minute for a prepaid call on his cell phone. The table
below shows the relationship between the number of minutes he speaks and the
cost:

2.1 Copy and complete the table.

2.2 Write down the two variables in this situation and identify which is the dependant
and independent variable.

2.3 Describe how the variables change along each row.

3. Sesfikile High School wants to rent a telephone line from a telecommunication
company. The school was given the following options:
• A landline package that costs R1 500 upfront plus a R1,50 for every minute
talked on the phone.
• A landline package that allows unlimited calls per month at a fixed rate of R2
200 per month.
3.1 Which of the two options would you classify as a constant relationship?
Give a reason for your answer.
3.2 Mrs. Hernandez asked her class to tabulate the information for Option 1 for
five months. Copy and complete the table

Number of minutes 40 80 120 160 200
talked per month

Cost of landline 1560

3.3 Write down the dependent and independent variables.

3.4 Describe how the two variables change in each row. Do they display any
patterns?

3.5 Does the cost of the landline remain the same in this scenario? If yes,
explain your answer. If no, give reasons for your answer.

4. If it takes 3 men 8 hours to deliver papers in one location answer the following
questions:

4.1 How long will it take 4 men to deliver the paper in the same location?

8 | P a g e I v y A c a d e m y