Предмет: Математика, автор: TihonovaPolina2007

стену длиной 6 м и высотой 3М хотят выложить кафелем 1 кафельная плитка имеет форму квадрата со стороной 12 см в одном ящике 120 плиты Какое наименьшее количество ящиков с кафелем надо приобрести для запланированной работы.помогите пожалуйста .по децствиям

Ответы

Автор ответа: parus77

Ответ:

6*3=18м² площадь стены

12 см=0,12 м

0,12*0,12=0,0144 м² площадь 1 кафельной плитки

18:0,0144= 1250 штук кафельной плитки понадобится

1250:120=10 (ост 50 ) значит 10 ящиков не хватит,нужно еще 50 плиток из 11 ящика.

отв.нужно приобрести 11 ящиков с кафелем

TihonovaPolina2007: не првильнг

parus77: почему?

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