1 The cost of making a call on a particular prepaid cell phone tariffsystem is Ro,025 per second.Explain why the relationship between the length and cost of acall on this system is a direct proportion.Determine the cost of calls lasting the following lengths of time:1.11.21.2.1 48 seconds1.2.28 minutes 22 seconds2 Some friends hire a taxi cab to travel to university. Consider thefollowing table:ysNo. of peopleCost per person23.4R250,00R125,002.1How much does it cost to hire the taxi? Complete the table.2.2 Explain why the relationship between the number of friendsand the amount that each person will pay is an inverseproportion relationship.

1 The cost of making a call on a particular prepaid cell phone tariff system is Ro,025 per second. Explain why the relationship between the length and cost of a call on this system is a direct proportion. Determine the cost of calls lasting the following lengths of time: 1.1 1.2 1.2.1 48 seconds 1.2.2 8 minutes 22 seconds

1 The cost of making a call on a particular prepaid cell phone tariff system is Ro,025 per second. Explain why the relationship between the length and cost of a call on this system is a direct proportion. Determine the cost of calls lasting the following lengths of time: 1.1 1.2 1.2.1 48 seconds 1.2.2 8 minutes 22 seconds

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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Question

1 The cost of making a call on a particular prepaid cell phone tariff
system is Ro,025 per second.
Explain why the relationship between the length and cost of a
call on this system is a direct proportion.
Determine the cost of calls lasting the following lengths of time:
1.1
1.2
1.2.1 48 seconds
1.2.2
8 minutes 22 seconds
2 Some friends hire a taxi cab to travel to university. Consider the
following table:
ys
No. of people
Cost per person
2
3.
4
R250,00
R125,00
2.1
How much does it cost to hire the taxi? Complete the table.
2.2 Explain why the relationship between the number of friends
and the amount that each person will pay is an inverse
proportion relationship.

Expert Solution

Step 1 Given :

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1. Cost of making a call = R0,025