30: 45 = 20% of ___
114
9
178
225
31: 45 =___ % of 120
40
37.5
32.75
0.395
32: 45% of 20 =___
900
8
9
10
33: 20% of ___= 84
420
390
16.8
335
2007-04-25 02:26:21 · 3 answers · asked by heather n 1 in Science & Mathematics ➔ Mathematics
30.
20% times x = 45
.20x = 45
x = 45/.20
x =225
31.
45 = x times 120
45 = x 120
45/120 = x
0.375 = x
0.375 x 100 = x
37.5% = x
x = 37.5%
32.
45% of 20 = x
.45 times 20 = x
9 = x
x = 9
33.
20% of x = 84
.20 (x) = 84
x = 84/.20
x = 420
2007-04-25 02:41:37 · answer #1 · answered by detektibgapo 5 · 1⤊ 0⤋
(1.) 225 (2.) 37.5% (3.) 9 (4.) 420
2007-04-25 09:39:39 · answer #2 · answered by hacker_lexy 3 · 0⤊ 0⤋
30). - 225
31). 37.5
32) = 9
33). = 420
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2007-04-25 09:46:43 · answer #3 · answered by SAMUEL D 7 · 0⤊ 0⤋