I poyezd 4 soatda 336 km, avtobus 3 soatda 126 km yo’l bosdi. Avtobusning tezligi poyezd tezligidan necha marta kam? Yechish




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II variant


1.Tenglamalar sistemasini o¢rniga qo¢yish usulida yeching:

2. Tenglamalar sistemasini qo¢shish usulida yeching:



3. Tenglamalar sistemasini grafik usulida yeching:



4. Tenglamalar sistemasini yeching:





5. ning qanday qiymatlarida tenglamalar sistemasini yechimga ega bo‘lmaydi?

3 - nazorat ishi

I variant

  1. Lola va oyisi birgalikda 110 chuchvara tayyorladilar, bunda Lola 2 soat, oyisi 3 soat ishladilar. Agar ular 1 soatda birgalikda 43 chuchvara tayyorlagan bo‘lsalar, ularnung har biri nechtadan chuchvara tayyorlaganlar ?

2. ekanligi ma¢lum. * o¢rniga > yoki < belgini shunday qoyinki, natijada to¢g¢ri tengsizlik hosil bo¢lsin, bunda:

а) ; b) ; c)


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I poyezd 4 soatda 336 km, avtobus 3 soatda 126 km yo’l bosdi. Avtobusning tezligi poyezd tezligidan necha marta kam? Yechish

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