a)1%=2
1%=0.01
2*100=200
x=200
b)250*4=1000
x=1000
c) 18:3=6
6*4=24
x=24
d)18,5*2=37
x=37
a)
x - szukana liczba
1%*x=2
1%=1/100
1/100*x=2
1/100x=2 /:1/100
x=2*100/1=200
b)
25%*x=250
25%=1/4
1/4*x=250
1/4x=250 /:1/4
x=250*4/1=1000
c
)x - szukana liczba
75%*x=18
75%=3/4
3/4*x=18
3/4x=18 /:3/4
x=18*4/3=24
d)
50%*x=18,5
50%=1/2
1/2*x=18,5
1/2x=18,5 /:1/2
x=18,5*2/1=37
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a)1%=2
1%=0.01
2*100=200
x=200
b)250*4=1000
x=1000
c) 18:3=6
6*4=24
x=24
d)18,5*2=37
x=37
a)
x - szukana liczba
1%*x=2
1%=1/100
1/100*x=2
1/100x=2 /:1/100
x=2*100/1=200
x=200
b)
x - szukana liczba
25%*x=250
25%=1/4
1/4*x=250
1/4x=250 /:1/4
x=250*4/1=1000
x=1000
c
)x - szukana liczba
75%*x=18
75%=3/4
3/4*x=18
3/4x=18 /:3/4
x=18*4/3=24
x=24
d)
x - szukana liczba
50%*x=18,5
50%=1/2
1/2*x=18,5
1/2x=18,5 /:1/2
x=18,5*2/1=37
x=37