Arianasorina670ask
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(1+2+3+.... +100):x=101
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Răspuns :

Kitty200704ask

[tex](1+2+3+.... +100):x=101[/tex]

[tex] \frac{100 \times 101}{2} :x=101[/tex]

[tex]50 \times 101 \div x = 101[/tex]

[tex]5050 \div x = 101[/tex]

[tex]x = 5050 \div 101 = 50[/tex]

Dariazancuask

Răspuns:

1+2+3+...+100=(100*101):2=50*101

50*101:x=101

5050:x=101

x=50

Succes!

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