(x plus 20) times 55 out of 60 equals x minus 20

(x+20)(55/60)=x-20;
55x+55*20=60x-1200;
5x=1200+1100=2300;
x=460;

How many milliliters is 1.2 meters multiplied by 0.33 times 0.55

1.2m × 0.33m × 0.55M
=2178 M3
=2178 × 10 & sup3; cubic decimeter
=217.8 liters
=217800 ml

If 13 of a is equal to 25 of B (a, B are not equal to 0), then a: B=______ ．

Because 13A = 25B, then a: B = 25:13 = 6:5, so the answer is: 6:5

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