<span>1) (</span>126<span>+</span>84<span>)/</span>5<span>=42 </span>км<span> (</span>скорость<span>)</span>
<span>2)<span> (</span>126<span>/42=3 </span>часа<span> </span></span>
<span> </span><span>Ответ: 3 </span>часа<span>.</span>
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А) 32/6 - 5/6 = 27/6 = 4целых 3/6 = 4целых 1/2
б) 7/3 - 2/3 = 5/3
в) 41/9 - 8/9 = 33/9 = 3целых 6/9 = 3целых 2/3
г) 37/12 -17/12= 20/12 = 5/6
д) 45/7 - 40/7= 5/7
е) 33/8 - 29/8 = 4/8 = 1/2
22 числа. три раза проверял
16:(9-x)=2
9-x=8
x=1
(4*x-130)=50/7
4x=50/7+130
4x=960/7
x=240/7