Mathematics Grade 7 November 2017 Memo (isiXhosa)

Downloaded from hlayiso.com IBAKALA ELIPHEZULU IBANGA 7 NOVEMBA 2017 IZIBALO ISIKHOKELO SOKUKOREKISHA AMANQAKU: 100 Esi sikhokelo sokukorekisha sinamaphepha ayi 7.

Downloaded from hlayiso.com 2 IZIBALO (EC/NOVEMBA 2017) IMIYALELO YOKUKOREKISHA 1. Nika amanqaku apheleleyo ngeempendulo kuphela, ngaphandle kokuba uxelelwe. 2. Yamkela nayiphi impendulo echanekileyo nokuba ayikho kwisikhokelo sokukorekisha. 3. UCA uthetha ukuqhubeka ubala ngokuchanekileyo. Akuvumelekanga ukufotokopa eli phepha Tyhila iphepha

Downloaded from hlayiso.com (EC/NOVEMBA 2017) IZIBALO 3 Imibuzo Iimpendulo ezilindelekileyo Ingcaciso Amanqaku 1. 1.1 A / 9 348 000  1 1.2 B / six tenth  1 1.3 D / 20  1 1.4 B/  1 1.5 C / 12  1 1.6 B / 1; 2; 4; 5; 10; 20  1 1.7 A/8 1 1.8 C / 12  1 1.9 C / Itrayengile eyi ekhwilatherali (Equilateral triangle)  1 1.10 B / -2  1 2. 17  1 3. 3.1 -4  Umfundi makabonise iidayagram kumgca manani. 1 3.2 8 okanye +8  1 4. 4.1 𝓍=9 1 4.2 𝓍 = 50  1 5. 5.1 4 1 Yamkela x 33 5 naluphi uhlobo 4 10 =5 x 3 lubalo oluchanekileyo. 40 = 15 Sebenzisa uCA 10 =2 15  2 =23 2 5.2 324,348 342,227 Yamkela naluphi uhlobo + 17,879 - 6,507 lobalo 342,227  335,720  oluchanekileyo. Sebenzisa uCA 2 5.3 0,048 Yamkela 8 naluphi uhlobo = 0,006  lobalo oluchanekileyo. Sebenzisa uCA 2 Akuvumelekanga ukufotokopa eli phepha Tyhila iphepha

Downloaded from hlayiso.com 4 IZIBALO (EC/NOVEMBA 2017) 3 5.4 √144 - 24 – 4 + √27 Yamkela = 12 – 16 – 4 + 3 naluphi uhlobo = -4 – 4 + 3  lobalo = -8 + 3  oluchanekileyo. =-5 Apply CA 3 5.5 Idiskhawunti = R600 – R324 = R276 Yamkela 276 100 naluphi uhlobo % yediskhawunti = 600 x 1 276 lobalo = 6  oluchanekileyo. = 46%  Sebenzisa uCA 2 5.6 5 32 Yamkela x = 20 amakhwenkwe  8 1 3 32 naluphi uhlobo x 1  = 12 amantombazana  lobalo 8 oluchanekileyo. Sebenzisa uCA 3 5.7 Unyaka 1: 5% ye R1 500 Yamkela 5 1 500 naluphi uhlobo x 1 = R75  x 2 iminyaka = R150  100 lobalo R 1 500 + R150 = R 1 650  oluchanekileyo. Sebenzisa uCA 3 5.8 12 ÷ 2 = 6 ÷ 2 = 3 iminyaka ubudala  2 6. INANI INANI LEETHAYILE LEETHAYILE EZIMNYAMA EZIMHLOPHE (BLACK TILES) (WHITE TILES) 1 5 2 7 3 9 4 (6.1) 11  5 13 (6.2) 50  103 n (6.3) 2n + 3  3 6.4 Isibini siphindaphindwe (two multiplied) ngenani Sebenzisa uCA leethayile ezimnyama plas uthri olingana (is equal to) nenani leethayile ezimhlophe.  2 Akuvumelekanga ukufotokopa eli phepha Tyhila iphepha

Downloaded from hlayiso.com (EC/NOVEMBA 2017) IZIBALO 5 7. 1 1 2 4 3𝑥 − 2 5 13 10 28 2 8. 8.1 Ixabiso lika 𝑥– (𝑣𝑎𝑙𝑢𝑒) uliphinde kabini (times Yamkela two) lilingana nexabiso lika 𝑦 (is equal to the naluphi uhlobo 𝑦 − 𝑣𝑎𝑙𝑢𝑒). lobalo oluchanekileyo. Sebenzisa uCA 2 8.2 𝑥 x 2 = 𝑦  Yamkela naluphi uhlobo lobalo oluchanekileyo. Sebenzisa uCA 2 9. 9.1 27 1 9.2 24 1 10. 1 x 1 = 16 17 2x2= 9 nangaphezulu 3x3= 4 inqaku 1. 4x4= 1 30 amanqaku 16 + 9 + 4 + 1 = 30  apheleleyo 2 11. 11.1 9 𝑖𝑖𝑦𝑢𝑟𝑒 (ℎ𝑜𝑢𝑟𝑠)  1 11.2 25 𝑚𝑚  1 11.3 Linear  1 11.4 50 𝑚𝑚.  Ukuhlobana kwayo kuliniya (It’s a linear relationship) no  kuqhubeka ngokunyuka nge 5 mm (it has a constant increase of 5 mm). 2 12. 𝓍 x 8 = 𝑅920  Yamkela = 𝑅920 ÷ 8 naluphi uhlobo 𝓍 = 𝑅115  lobalo oluchanekileyo. Sebenzisa uCA 2 13. 𝐴𝑛𝑔𝑙𝑒 𝐵 = 90° ; 𝐴𝑛𝑔𝑙𝑒 𝐴 = 45°; 𝐴𝑛𝑔𝑙𝑒 𝐶 = 45°  𝐼𝑖 − 𝑒𝑛𝑔𝑖𝑙𝑒 𝐴 no 𝐵 zii-engile ezikhomplimentari (are complementary angles)  2 14. 14.1 B 1 14.2 C 1 14.3 D 1 14.4 A  1 14.5 Silinda (Cylinder)  1 Akuvumelekanga ukufotokopa eli phepha Tyhila iphepha

Downloaded from hlayiso.com 6 IZIBALO (EC/NOVEMBA 2017) 15.   2 16. Zikhongruwenti (Congruent)  Ziyafana (Similar)  2 17.   2 18. 18.1 ⃡𝐺𝐵 ⊥ ⃡𝐴𝐶  1 18.2 ⃡𝐴𝐶 ll ⃡𝐷𝐹  1 18.3 900  1 18.4 Right angle /  1 18.5 𝐴𝐸̂ 𝐷 = 30°  Yamkela Kuba (Because) 𝐵𝐸̂ 𝐴 + 𝐴𝐸̂ 𝐷 = 900  naluphi uhlobo Complementary Angles = 900  lobalo oluchanekileyo. Sebenzisa uCA 3 19. 𝒶 = 80° Zombini (Both are) zi-akthyuthi angles zika 80° kwaye yimilo (shape) efanayo etransleythayo (that translates).  2 Akuvumelekanga ukufotokopa eli phepha Tyhila iphepha

Downloaded from hlayiso.com (EC/NOVEMBA 2017) IZIBALO 7 20. 𝑃 = 35 𝑚𝑚 + 10 𝑚𝑚 + 25 𝑚𝑚 + 20𝑚 𝑚 + Yamkela 25 𝑚𝑚 + 10 𝑚𝑚 + 35 𝑚𝑚 + 40 𝑚𝑚 = 200 𝑚𝑚 naluphi uhlobo  lobalo oluchanekileyo. Sebenzisa uCA 2 21. 21.1 Total surface area – sum of the areas of the six Yamkela rectangles: naluphi uhlobo 𝐴 = [(5 × 2) + (5 × 2) + (5 × 4) + (5 × 4) + (4 × 2) lobalo + (4 × 2)]𝑚2  oluchanekileyo. = 10 𝑚 + 10 𝑚2 + 20 𝑚2 + 20 𝑚2 + 8 𝑚2 2 Sebenzisa uCA + 8 𝑚2  = 76 𝑚2  4 21.2 Inani leelitha zepeyinti ezifunekayo (Number of Yamkela litres of paint needed): naluphi uhlobo 126 𝑚2 ÷ 6 𝑚2/ℓ = 21 ℓ lobalo oluchanekileyo. Sebenzisa uCA 2 22. 𝑉𝑜𝑙𝑢𝑚𝑒 = 𝑙 x 𝑏 x ℎ  = 30 𝑚𝑚 x 30 𝑚𝑚 x 30 𝑚𝑚  = 27 000 𝑚𝑚3  = 27 𝑐𝑚3  4 23. 23.1 20 𝑎𝑏𝑎𝑓𝑢𝑛𝑑𝑖  1 23.2 38 – 10 = 28  1 23.3 75%  2 23.4 24,7  2 24. 1  6 1 25. 25.1 𝑅30  1 25.2 37,5%  1 25.3 3 ∶ 5  1 EWONKE: 100 Akuvumelekanga ukufotokopa eli phepha Tyhila iphepha