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lakostinska
@lakostinska
July 2022
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скільки відсотків значення виразу 6 5/12*(4 7/11 - 3 6/7) становить від значення виразу (40,425 + 4 3/8):2 4/5?
[tex]6 \ \frac{5}{12} \times( 4 \ \frac{7}{11} - 3 \ \frac{6}{7} )[/tex]
[tex](40.425 + 4 \ \frac{3}{8} \div 2 \ \frac{4}{5} [/tex]
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snow99
Verified answer
6 5/12 * (4 7/11 - 3 6/7) = 77/12 * (51/11 - 27/7) = 77/12 * (357/77 - 297/77) = 77/12 * 60/77 = 60/12 = 5
(40,425 + 4 3/8) : 2 4/5 = (40 17/40 + 35/8) : 14/5 = (1617/40 + 35/8) : 14/5 = (1617/40 + 175/40) : 14/5 = 1792/40 : 14/5 = 224/5 * 5/14 = 16
16 -- 100%
5 -- x%
x = 5*100/16 = 500/16 = 125/4 = 3125/100 = 31.25 %
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Answers & Comments
Verified answer
6 5/12 * (4 7/11 - 3 6/7) = 77/12 * (51/11 - 27/7) = 77/12 * (357/77 - 297/77) = 77/12 * 60/77 = 60/12 = 5(40,425 + 4 3/8) : 2 4/5 = (40 17/40 + 35/8) : 14/5 = (1617/40 + 35/8) : 14/5 = (1617/40 + 175/40) : 14/5 = 1792/40 : 14/5 = 224/5 * 5/14 = 16
16 -- 100%
5 -- x%
x = 5*100/16 = 500/16 = 125/4 = 3125/100 = 31.25 %