Для покупки 8 воздушных шариков у тани не хватило 20 рублей .если она купит 5 шаров. то у неё останется 100 рублей.сколько денег было у тани? сколько стоит один шарик ?
3 шарика будут стоить ее 100 рублей+20которых не хватило, таким образом получаем уравнение 3*х=120 х=40, это стоимость 1 шарика 40*5+100=300, это количество денег, которые были у тани
I am grateful for this year after all!) The more I thank him so that I had more friends, acquaintances, began to devote more time to the parents, for me it was the best year of his most vivid impressions!) My friend appeared the dog with which we often played in the summer!) I tried to be Yeshe better and improve ourselves!) I like it could be difficult, but I tried!) I bragodaren everything and for everything they have done for me and was carried out at the time!) me in the next year will be even better !)
I am grateful for this year after all!) The more I thank him so that I had more friends, acquaintances, began to devote more time to the parents, for me it was the best year of his most vivid impressions!) My friend appeared the dog with which we often played in the summer!) I tried to be Yeshe better and improve ourselves!) I like it could be difficult, but I tried!) I bragodaren everything and for everything they have done for me and was carried out at the time!) me in the next year will be even better !)
х=40, это стоимость 1 шарика
40*5+100=300, это количество денег, которые были у тани