Wielkość h i s są odwrotnie proporcjonalne. Jeśli h = 9, to s = 140. Wyznasz s wiedząc, że h=60.
s1 = 140
s = ?
h1 = 9
h2 = 60
9/140 = 60/s
9/140 * s = 60
s = 60 * 140/9
s = 20 * 140/3
s = 2800/3
s= 2800/3
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s1 = 140
s = ?
h1 = 9
h2 = 60
9/140 = 60/s
9/140 * s = 60
s = 60 * 140/9
s = 20 * 140/3
s = 2800/3
s= 2800/3