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MAZOEZI YA HISABATI
Saturday, July 6, 2013
MZINGO-4
Mzingo wa pembetatu ifuatayo ni mm 150. Tafuta thamani ya y.
Suluhu
Mzingo = jumla ya pande zote
150 = y + 70 + 50
150 = y + 120
150-120 = y + 120-120
30 = y + 0
30 = y
Hivyo y = 30
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