This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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4) Huu ni mfano wa riba ya kiwanja (compound interest). Fomula ya riba ya kiwanja ni A = P(1 + r)^n, ambapo: • A ni kiasi cha mwisho • P ni kiasi cha awali (principal) • r ni kiwango cha riba kwa mwaka (rate) • n ni idadi ya miaka (time) Step 1: Kokotoa kiasi cha awali alichoweka shambani. Mkulima aliuza magunia 200 ya mahindi kwa Sh 5000 kila moja. P = 200 × Sh 5000 P = Sh 1,000,000 Step 2: Tambua kiwango cha riba na muda. Kiwango cha riba (r) = 10% p.a. = (10)/(100) = 0.10 Muda (n) = miaka 3 Step 3: Tumia fomula ya riba ya kiwanja. A = P(1 + r)^n A = Sh 1,000,000 (1 + 0.10)^3 A = Sh 1,000,000 (1.1)^3 Step 4: Kokotoa kiasi cha mwisho. A = Sh 1,000,000 × 1.331 A = Sh 1,331,000 Kiasi katika akaunti yake ya akiba baada ya miaka 3 ni Sh 1,331,000. 5) Huu pia ni mfano wa riba ya kiwanja. Fomula ya riba ya kiwanja ni A = P(1 + r)^n. Step 1: Tambua kiasi cha awali, kiwango cha riba, na muda. Kiasi cha awali (P) = Sh 150,000 Kiwango cha riba (r) = 10% p.a. = (10)/(100) = 0.10 Muda (n) = miaka 3 Step 2: Tumia fomula ya riba ya kiwanja. A = P(1 + r)^n A = Sh 150,000 (1 + 0.10)^3 A = Sh 150,000 (1.1)^3 Step 3: Kokotoa kiasi cha mwisho. A = Sh 150,000 × 1.331 A = Sh 199,650 Kiasi cha pesa alicholipa Wepukhulu baada ya miaka mitatu ni Sh 199,650. Tuma swali linalofuata 📸