Mathematical Literacy 4 Module 2 Part 2
14
2. IDENTIFY AND USE INFORMATION FROM DIFFERENT REPRESENTATIONS OF RELATIONSHIPS TO SOLVE PROBLEMS IN THE WORKPLACE • At the end of this outcome, you will be able to: • Identify and select information from different representations of relationships to solve problems • Use and develop formulae with confidence
-
Upload
future-managers -
Category
Education
-
view
735 -
download
4
description
This slide show complements the learner guide NCV 4 Mathematical Literacy Hands-On Training by San Viljoen, published by Future Managers Pty Ltd. For more information visit our website www.futuremanagers.net
Transcript of Mathematical Literacy 4 Module 2 Part 2
2. IDENTIFY AND USE INFORMATION FROM DIFFERENT REPRESENTATIONS OF RELATIONSHIPS TO SOLVE PROBLEMS IN THE WORKPLACE
• At the end of this outcome, you will be able to:• Identify and select information from
different representations of relationships to solve problems
• Use and develop formulae with confidence
Activity 10
• Solve the following equations by logic:
1.14t =28 What is the value of t
2.x / 1000 = 56 What is the value of x
3.V = (28)(160)(17) What does V stand for and what is its value?
4.6500 = (8)(25)(h) What does the “h” stand for and what is its value?
2
56 000
Volume 76 160 units3
Height 32.5 units
Activity 11
1. Select the correct formula from the given table and then calculate the unknown value by using the given substitution values.
a. SI if P=R20 000; t = 10 years and r =15%
b. S if d = 42.2km at t=2hrs25min
c. Volume of a tank if r of the base = 2.5m and the height of cylinder =9.25m
SI = R30 000
S = 17, 46 km.h-1
181.62m3
Activity 11
d. Circumference if a circle in centimetres if r=22 inches (1 inch = 2.54cm)
351.10cm
Activity 11
e. V if L=100cm; b=7cm and h=250mm
17500 cm3
Activity 11
f. P if L=75m and b=2500cm
200cm
Activity 11
g. Degrees C if F=185F
85º
Activity 11
2. Select the correct formula from the given table to calculate the following by substituting the given values:
a. Calculate the average speed of an aircraft that takes 3 1/8 hours to fly 2038.24km
652.24km.h-1
Activity 11
b. Calculate the volume if a cylinder with radius 1 7/8m and the height 6.4m
70.69m2
Activity 11
c. Convert 83 degrees Celsius to degree Fahrenheit
181.4 F
Activity 11
d. What is the total external surface area of a cylinder, which has a radius of 125cm and a height of 1350mm? Give the answer in square metres.
204 203. 52 cm2 = 20.42m2
Activity 11
e. How many cubic metres of water is there in a swimming pool which is 25 metres long, 7 metres wide and 2,25 metres deep?
393.75m3 = 393.75 tons of water
Activity 11
f. If you borrow R1800 from a friend and he charges you simple interest at a rate of 7% per year, calculate the amount you have to repay the friend after 62 months.
R651
Activity 11
g. What is the length of fencing that a farmer has to buy to fence his farm, which is 2,8km long and 1850m wide?
9,30 km of fence
