Question

Partea 2 ( de unde scrie INCERCUITI RASPUNSUL CORECT)
Urgent va rog

Answer 1

1. raspuns B
7x+3=4⇒7x=4-3⇒7x=1⇒x=1/7
2.raspuns A
1/6+4/9÷2⇒numitor comun 18⇒3+8/18÷2⇒11/18×1/2=11/36
3. (6,25+0,75+4,88)÷x=10,8⇒11,88/x=10,8⇒x=11,88/10,8=1,1
raspuns B
4.11/12×3+7/15×5÷3+5⇒11/4+7/3÷8⇒numitor comun 12⇒3×11+4×7/12/8⇒33+28/12/8⇒61/12/8⇒61/12×1/8⇒Mp=61/12×8=61/96
raspunsC