Question

Jesli 410cm=29,7 cm
to ile jest:
a)85cm
b)80cm
c)100cm
d)207cm
e)122cm
d)40 cm
Jesli 262,5cm=21cm
to ile jest:
a)59cm
b)97cm
c)40cm
d)116cm
e)90cm
f)95cm

Answer 1

A) 410 cm = 29,7 cm
85 cm = x 

x= 85*29,7 : 410 = 2524,50 : 410 = 6,157 

85 = 6,157 

b) 80* 29,7 : 400 = 2376 : 410 =  5,80 cm
c) 100* 29,7 : 400 = 2970 : 410 = 7,24 cm 
d) 207* 29,7:410 = 6147,9: 410 = 14,99 cm 
e) 122*29,7:410 = 3623,4 : 410 = 8,84 cm 
f) 40* 29,7 : 410 = 1188: 410 = 2,90 cm

_______________________________________

a) 59* 21 : 262,5 = 1239 : 262,5= 4,72 cm
b) 97*21:262,5 = 2037:262,5= 7,76 cm
c) 40*21 : 262,5 = 840:262,5 = 3,20 cm
d) 116*21:2,62,5 = 2436:262,5= 9,28 cm
e) 90*21:262,5 = 1890:262,5 = 7,20 cm
f) 95*21:262,5 = 1995:262,5= 7,60 cm