Question

Znajdź wielkość której :
a)60% to 150 80% to 80 dag
b)3% to 2,4 kg 7% to 63 kg 8% to 72 kg
c)150% to 450 km 220% to 66 kg 110% to 99 km
d)35% to 105 m 55% to 110 m 15% to 300 m
proszę o to żeby procenty wynosiły 100%

Answer 1

1)
60 % --- 150
100 % --- x ( konkretna liczba, niewiadoma )

x= 100 % x 150 : 60 % = 250
2)
3% -- 2,4kg
100% -- x
x= 80 kg

7 % -- 63 kg
100% -- x

x= 900

8 % -- 72kg
100% -- x

x= 900
c) 150 % --- 450
100% --- x
x= 300

99 kg - 110%
x --- 100%
x=90

220% - 66kg
100% - x
x= 30

d) 35 % -- 105
100% - x
x= 300

55% - 110
100% - 200

15 % = 300
100% = x
x= 2000

Pozdrawiam :)

Answer 2

A) 60% - 150
100 % - x
x=150*100 / 60
x= 250

80% - 80 dag
100% - x
x=100*80 / 80
x=100

b) 3% - 2,4 kg
100% - x
x=2,4*100 / 3
x=80 kg

7% - 63 kg
100% - x
x=63*100 / 7
x=900 kg

8% - 72 kg
100% - x
x=72*100 / 8
x=900 kg

c) 150% - 450 km
100% - x
x=100*450 / 150
x=300 km

220% - 66 kg
100% - x
x=100*66 / 220
x=30 kg

110% - 99 km
100% - x
x=99*100 / 110
x=90 km

d) 35% - 105 m
100% - x
x=100*105 / 35
x=300 m

55% - 110 m
100% - x
x=100*110 / 55
x=200 m 

15% - 300 m
100% -x
x=100*300 / 15
x=2000 m