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1) 97 g
2) 97 kg
3) 1 kg
4) 59 cg
5) 39 g
6) 6 Dg
El ejercicio de las figuras
7) (12^1) - 8 = 12 - 8 = 4
8) (2^5) - x = 10 2^5 - 10 = x 32 - 10 = x x = 22
9) (7^2) - x = 7 x = 49 - 7 x = 42
10) (3^4) - 17 = 81 - 17 = 64
11) (2^7) - 43 = 128 - 43 = 85
12) (10^2) - x = 5 x = 10^2 - 5 x = 100 - 5 = 95
El de las fracciones:
13) (14/15) = (x/105)
(105)(14/15) = x
7 * 14 = x
x = 98
14) (x/91) = (178/182)
x = 91 ( 178 / 182)
x = 16198 / 182
x = 89
15) (x / 81) = (237 / 243)
x = 81 * (237 / 243)
x = 19197 / 243
x = 79
16) 5/6 = x/84
x = 84 * (5/6)
x = 14 * 5
x = 70
17) 15/18 = x/72
x = 72 * (15/18)
x = 4 * 15
x = 60
18) x/56 = 7/8
x = 56 * (7/8)
x = 7 * 7
x = 49
19) x/80 = 3/5
x = 80 * (3/5)
x = 240/5
x = 48
20) 114/118 = x / 59
x = 59 * (114/118)
x = 6726 / 118
x = 57