Ответ:
а) 3/8=у/3,2; 3•3,2=8у; у=3•3,2/8; у=1,2
б)х/2,4=0,75/0,9; x=2,4•0,75:0,9; x=24•0,75:9;
x=8•0,25;x=2
c)1,08/0,3=1,8/x; x=0,3•1,8:1,08; x=0,1•0,6/0,12;
x=6/12;x=1/2
d)x/2,4=0,5/0,4; x=2,4•0,5:0,4;x=6•0,5; x=3
e)1,8/0,3=3,6/x; x=0,3•3,6:1,8; x=0,3•2; x=0,6
f)2,4/3=0,8/x; x=3•0,8:2,4; x=3•8:24; x=1
g)1,5/10=4,5/x; x=10•4,5:1,5;x=30
h)6,3/6=2,1/x; x=6•2,1:6,3; x=2
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Ответ:
а) 3/8=у/3,2; 3•3,2=8у; у=3•3,2/8; у=1,2
б)х/2,4=0,75/0,9; x=2,4•0,75:0,9; x=24•0,75:9;
x=8•0,25;x=2
c)1,08/0,3=1,8/x; x=0,3•1,8:1,08; x=0,1•0,6/0,12;
x=6/12;x=1/2
d)x/2,4=0,5/0,4; x=2,4•0,5:0,4;x=6•0,5; x=3
e)1,8/0,3=3,6/x; x=0,3•3,6:1,8; x=0,3•2; x=0,6
f)2,4/3=0,8/x; x=3•0,8:2,4; x=3•8:24; x=1
g)1,5/10=4,5/x; x=10•4,5:1,5;x=30
h)6,3/6=2,1/x; x=6•2,1:6,3; x=2