September 2018 1 25 Report

1 . Jakimi liczbami naturalnymi można zastąpić litery : a, b, c , d ?

0 < \frac{a}{20} < \\frac{1}{4}

0 < \frac{b}{15} < \\frac{1}{2}

\frac{1}{2} < \frac{c}{21} < 1

1 < \frac{d}{30} < 1\frac{1}{2}

2. Podaj przykłady liczb x,y,z,w , które spełniają podane warunki :

\frac{1}{7} < x < \frac{2}{7}

\frac{3}{4} < y < \frac{7}{8}

\frac{1}{3} < z < \frac{1}{2}

\frac{2}{3} < w < \frac{3}{4}


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