(8.9+x) / 3.4 =8.5 1.8*(10.7-x)=1.98 20.5: (х+399)=0,05 - вопрос №92585908934851810719820539900509882548751 от vikazelenaya1 04.01.2020 16:28

Question

Математика: (8.9+x) / 3.4 =8.5 1.8*(10.7-x)=1.98 20.5: (х+399)=0,05 (0,988+х)*2,5=4,87 5 1/13 *0,65= 9/16 *1/3= 72*5/6 5/7*0,42 4 1/5 *7/10 !

vikazelenaya1 · Answer

8,9+x=8, 5×3, 48,9+x=28, 9x=28, 9-8, 9x=202. ) 10, 7-x =1, 98:1, 810, 7-x=1, 1x=10, 7-1, 1x=9, 6...