Odpowiedź :
A)
4,2 - 3,5 = 0,7
0,7 ÷ 3,50 ×100% =20 %
b) 4 - 3,50 = 0,5 gr
0,5 ÷ 4 × 100% = 12,5 %
C)4,20 - 4 = 0,2
0,2 ÷ 4 × 100% = 5 %
4,2 - 3,5 = 0,7
0,7 ÷ 3,50 ×100% =20 %
b) 4 - 3,50 = 0,5 gr
0,5 ÷ 4 × 100% = 12,5 %
C)4,20 - 4 = 0,2
0,2 ÷ 4 × 100% = 5 %
a) 4.20zl - 3.50zl = 0.70zl
0.70zl
x= ----------
3.50*100%
x= 20%
b)
4,00zl - 3.50zl= 0.50zl
0.50zl
x= ---------------------
3.50zl * 100%
x= 12.5%
c) 4,20zl - 4.00zl= 0.20zl
0.20zl
x= ----------------
4.00zl *100%
x= 5%
0.70zl
x= ----------
3.50*100%
x= 20%
b)
4,00zl - 3.50zl= 0.50zl
0.50zl
x= ---------------------
3.50zl * 100%
x= 12.5%
c) 4,20zl - 4.00zl= 0.20zl
0.20zl
x= ----------------
4.00zl *100%
x= 5%
a)
100% - 4.20
x% - 3.50
x = 3.5*100%/4.2
x = 83.(3)
100% - 83.3% = 16.7%
b)
100% - 4.00 zł
x% - 3.50 zł
x = 3.50*100%/4.00
x = 87.5
100% - 87.5% = 12.5%
c)
100% - 4.20
x% - 4.00
x = 4.00*100%/4.20
x = 95 ( w zaokrągleniu)
100% - 95% = 5%
100% - 4.20
x% - 3.50
x = 3.5*100%/4.2
x = 83.(3)
100% - 83.3% = 16.7%
b)
100% - 4.00 zł
x% - 3.50 zł
x = 3.50*100%/4.00
x = 87.5
100% - 87.5% = 12.5%
c)
100% - 4.20
x% - 4.00
x = 4.00*100%/4.20
x = 95 ( w zaokrągleniu)
100% - 95% = 5%