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Noob1ik @Noob1ik

August 2022 1 5 Report

2,3 : 5 3/4 = 5x : 6 1/4 ; и 5x : 2,7 = 6 1/4 : 6 3/4

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krampus777

Ответ:

$1)2.3 \div 5 \frac{3}{4} = 5x \div 6 \frac{1}{4} \\ \frac{23}{10} \times 6 \frac{1}{4} = 5 \times 5 \frac{3}{4} \times x \\ \frac{115}{8} = \frac{115}{4} x \\ \frac{1}{2} = x \\ x = \frac{1}{2} \\ x = 0.5 \\ 2)5x + 2.7 = 6 \frac{1}{4} \div 6 \frac{3}{4} \\ 5 \times 6 \frac{3}{4} \times x = \frac{27}{10} \times 6 \frac{1}{4} \\ \frac{135}{4} x = \frac{135}{8} \\ x = \frac{1}{2} \\ x = 0.5$

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