Решите графически систему уранкнийй y=2x x+y=6

Решение: ab/a+b
a*b=13
a+b=8
13/8=1.625

900+ 60 + 5
5000+700+30+6
800000+5000+400+2
70000+3000+90+4

1)49:9=5(см) заплетёт за 1 мин.
6м=600см
2)600:5=120(мин)заплетёт 6 м
120мин=2ч
Ответ:2ч

4=3+1=2+2
5=2+3=4+1
6=4+2=3+3=1+5
7=2+5=4+3=3+4
8=2+6=3+5=1+7=4+4
9=1+8=3+6=5+4=2+7
10=3+7=1+9=4+6=2+8=5+5

<span><span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> 6 </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> к </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> и </span><span>   </span><span> 4 </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span> 5 </span><span> д </span><span> е </span><span> с </span><span> я </span><span> т </span><span> и </span><span> ч </span><span> н </span><span> ы </span><span> е </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> а </span><span>   </span><span> и </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span> 3 </span><span>   </span><span>   </span><span>   </span><span> й </span><span>   </span><span> с </span><span>   </span><span> 2 </span><span>   </span><span>   </span></span><span><span> 10 </span><span> д </span><span> р </span><span> о </span><span> б </span><span> ь </span><span>   </span><span> 7 </span><span>   </span><span>   </span><span> л </span><span>   </span><span> д </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span> о </span><span>   </span><span>   </span><span> н </span><span>   </span><span>   </span><span> и </span><span>   </span><span> о </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span> 1 </span><span> з </span><span> н </span><span> а </span><span> м </span><span> е </span><span> н </span><span> а </span><span> т </span><span> е </span><span> л </span><span> ь </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span> ф </span><span>   </span><span>   </span><span> п </span><span>   </span><span>   </span><span> е </span><span>   </span><span> и </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span> и </span><span>   </span><span>   </span><span> р </span><span>   </span><span>   </span><span> л </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span> с </span><span>   </span><span>   </span><span> а </span><span>   </span><span>   </span><span> ь </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> в </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> и </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> 9 </span><span> п </span><span> л </span><span> а </span><span> н </span><span> у </span><span> д </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> ь </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span> 8 </span><span> о </span><span> б </span><span> ы </span><span> к </span><span> н </span><span> о </span><span> в </span><span> е </span><span> н </span><span> н </span><span> ы </span><span> е </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> а </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span></span><span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span> я </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span><span>   </span></span></span></span>

1.      Математическое выражение, стоящее под знаком обыкновенной дроби.

2.      Как на Руси называли дроби?

3.      Кто впервые в Европе ввёл десятичные дроби?

4.      Математическое выражение, стоящее над знаком обыкновенной дроби.

5.      Формат дроби.

6.      В какой стране впервые встречаются десятичные дроби?

7.      Как называется эта дробь 9/8 ?

8.      Формат дроби.

9.      Греческий математик, который ввёл слова «числитель» и «знаменатель» в оборот?

10.  Число, состоящее из одной или несколько частей (долей) единицы?