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Matematyka wokół nas 1

a) 360o225o​=0,625=62,5%

4%⋅0,75kg=0,04⋅0,75kg=0,03kg

1,67%⋅x=100

a=1207​:2,7+2,7:1,35 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; a=1,35:2,7+2

1200+20%⋅1200=120%⋅1200=1,2⋅1200=1440

0,16%⋅35=0,0016⋅35=0,056

x−cena tanˊszego podręcznika 125%⋅x−cena droz˙szego podręcznika

95%⋅x=589 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 620−589=31

43​⋅3600=2700 &nbsp;&nbsp; 2700+30%⋅2700=130%⋅2700=1,3⋅2700=3510

4800360​⋅100%=7,5%

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