Rozwiąże ktoś wszystkie zadania z załącznika?

5. a) 160 zl ----- 100% x zł ------- 75% X = [latex] frac{160*75}{100} [/latex] = 120 zł b) 500 t ----- 100% x t ------ 40% X = [latex] frac{500*40}{100} [/latex] = 200 t 6. a) 15 --- 10% x --- 100% X = [latex] frac{15*100}{10} [/latex] = 150 b) 42 --- 60% x --- 100% X = [latex] frac{42*100}{60} [/latex] = 70 7. 280 zl  ----- 100% x zl ------ (100-10) = 90% x = [latex] frac{280*90}{100} [/latex] = 252 zł 252 zł ---- 100% x zł ----- 10% x = [latex] frac{252*10}{100} [/latex] = 25,2 zł 8. Agata 640 --- 100% x ----- 25% x = [latex] frac{640*25}{100} [/latex] = 160 głosów ____________________________________________________________ Marek [latex] frac{1}{4} = 0.25 = [/latex]25% 640 ----- 100% x ------ 25% X = [latex] frac{640*25}{100} [/latex] = 160 głosów ____________________________________________________________ Iwona 640 ----- 100% x ----- 20% X = [latex] frac{640*20}{100} [/latex] = 128 głosów ____________________________________________________________ Hania 640 - ( 2 * 160 + 128 ) = 640 - 448 = 192 głosy Odp: Wygrała Hania. Miała 192 głosy. 9. a) 3400 zł ---- 100% x zł ---- 110% X = [latex] frac{3400*110}{100} [/latex] = 3740 zł b) 3740 zł ---- 100% x zł --- 125% X = [latex] frac{3740 * 125}{100} [/latex] = 4675 zł