1. 1000:100=10
32:100=0,32
6:100=0,06
0,8:100=0,008
2. 1) 200 = 100%
15 = х%
200х=100*15, х=7,5%
2) 25 = 100%
75 = х%
25х=75*100, х=300%.
3) 4,5 = 100%
1,8 = х%
4,5х=1,8*100, х=40%
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Verified answer
1. 1000:100=10
32:100=0,32
6:100=0,06
0,8:100=0,008
2. 1) 200 = 100%
15 = х%
200х=100*15, х=7,5%
2) 25 = 100%
75 = х%
25х=75*100, х=300%.
3) 4,5 = 100%
1,8 = х%
4,5х=1,8*100, х=40%