|
| (1)45:54=60:x, 45x=54×60, 45x÷45=3240÷45, x=72; (2)3:2.5=x:40, 2.5x=3×40, 2.5x÷2.5=120÷2.5, x=48; (3)
x=
(4)
40x=24×5, 40x÷40=120÷40, x=3; (5)6.5:x=3.25:4, 3.25x=6.5×4, 3.25x÷3.25=26÷3.25, x=8; (6)
x=7.2. |
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(2)
=
(3)x:6=0.7:0.28(4)20:3=50:x
