<span><span>75 ÷ 880 = 0.0852(27)</span><span><span>-75 880</span><span>70400.0852(27)</span><span> -4600</span><span> 4400</span><span> -2000</span><span> 1760</span><span> -2400</span><span> 1760</span><span> -6400</span><span> 6160</span><span> 24<span>0
</span></span></span></span>
S = 36t+34t=70 расстояние
140:70=2 часа время . через которое мотоциклист встретиться
X^2-y^2 = 8
x+y = 4
x=4-y
(4-y)^2-y^2=8 *
* 16 - 8y +y^2-y^2 = 8
-8y = -8
y=1
y=1
x=3