розвяжите пропорцию:
1) 24/x = 8/7
2) 4 : 5/4 = 1/5 : x
3) x+3/12 = 4/3
СРОЧНО ПЖЖЖЖЖЖЖЖЖ!!!!!!!!!!!!
1) 24/x = 8/7
2) 4 : 5/4 = 1/5 : x
3) x+3/12 = 4/3
СРОЧНО ПЖЖЖЖЖЖЖЖЖ!!!!!!!!!!!!
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Answers & Comments
Ответ: 1) х=24*7/8=21;
2) 16/5=1/(5*х)⇒5*х=5/16⇒х=1/16
3) х=4/3-3/12=(4*4-3)/12=13/12=1 1/12.
Пошаговое объяснение:
168=8х
х=168:8
х=21
2)5/4х=4×1/5
5/4х=6
х=6:5/4
х=24/5
3)х=4/3-3/12
х=16/12-3/12
х=-13/12