LESSON SIX (23 JUNE 2020) ALGEBRA
GOOD DAY GRADE 8'S,
TODAY’S WORK IS ON PAGE 113 – 115 OF THE TEXTBOOK, CHAPTER 9
We have looked at equations in chapter seven of your textbook. This work was done at the end of term one. Activity 9.1 is a recap of chapter seven.
When we talk about equations, we are expanding from expressions. An equation has a left hand side, equal to sign, and a right hand side.
Remember to keep your =(equal to signs) aligned as you work down the page to compete your sum. In an equation, you will find a variable. Solving an equation means that you end up finding the value of your variable.
Depending on the question, you may have to first formulate the equation, then you solve for the unknown(variable).
Example: If sending out sms’s costs R1,00, we can write an equation for this information. The equation will help us to find the cost of sending out any number of sms’s (Variable – because it can change)depending on our situation.
Cost = number of sms’s x R1,00
If five sms’s were sent, c = 5 x R2,00
= R10,00
If I spent R40 on sms’s, how many have I sent out?
R40 = n x R2,00 (Where n is the number of sms’s)
40 divided by R2,00 = n
20 = n This means that 20 sms’s where sent out.
WORK TO BE DONE IN EXERCISE BOOKS:
ACTIVITY 9.1 PAGE 115.
DUE: REMEMBER ANSWERS DONE IN YOUR EXERCISE BOOKS MUST BE SENT TO YOUR TEACHERS, FROM THERE WE WILL SEND YOU THE MEMO. LESSON SIX IS DUE NO LATER THAN 24 JUNE 2020 @ 15:00. WHATSAPP MESSAGES ARE TO BE SENT ONLY BETWEEN 08:00 AND 15:00 FROM MONDAY TO SATURDAY PLEASE.
***PLEASE ADD THE LESSON NUMBER TO YOUR MESSAGE***
THIS MEANS WHEN SENDING THE PICS, START OF BY STATING YOUR NAME, ADMIN NUMBER AND THE LESSON NUMBER WITH THE DATE:
EXAMPLE: Ayanda Duma, Gr 8B, answers for lesson six(22 June 2020)
NB: If you have not been issued a textbook, please contact me (Mrs Maharaj) urgently!
Details are below:
Mrs Makwara 071 809 2055 vmakwara@alexhigh.org.za
Mrs Cassim 084 786 2585 scassim@alexhigh.org.za
Miss Thwala 083 787 3976 pthwala@alexhigh.org.za
Mrs Hlatshwayo 074 705 6775 mhlatshwayo@alexhigh.org.za
Mrs Maharaj 073 5581246 hmaharaj@alexhigh.org.za
Mr Cele 079 622 1676 bcele@alexhigh.org.za