√ 288 <span> = √</span><span> 2 5 · 3 2 </span><span> = 12 √</span><span> 2
</span>√ 175 <span> = √</span><span> 5 2 · 7 </span><span> = 5 √</span><span> 7
</span>√ 44 <span> = √</span><span> 2 2 · 11 </span><span> = 2 √</span><span> 11
</span>√ 63 <span> = √</span><span> 3 2 · 7 </span><span> = 3 √</span><span> 7
</span>√ 450 <span> = √</span><span> 2 · 3 2 · 5 2 </span><span> = 15 √</span><span> 2
</span>√ 1300 <span> = √</span><span> 2 2 · 5 2 · 13 </span><span> = 10 √</span><span> 13 </span>
12\30у+9\30у-4\30у=1\6
17\30у=1\6
30у=1\6*17
30у=17\6
у=17\180
1 платье=3 м
58м=?
Решение
58:3=19 пальто
15,2*8=121,6 121,6
519,2=640,8
640,8:8,9=72
72-3,12=68,88
ответ 68,88