# Children! PodskazhitePliz! I the second time already write not who does not answer (((((((((((To Dai of 40 Points for 2 tasks 1. A half of books of school library make textbooks, the sixth part of all textbooks - textbooks on mathematics. What part of all books is made by textbooks by mathematics? 2. 4 friends came to birthday to Vasya. The first received ONE FIFTH pies, the second ONE FOURTH - the rest, the third ONE THIRD - the new rest. Vasya divided the pie rest equally with the fourth friend. Who got the most part? Pliiiiz of children to a proshuuuuu 362
2) Let's designate all pie for unit 1) 1/5 - received the 1st 2) (1-1/5)*1/4 = 4/5*1/4 = 1/5 - received the 2nd 3) (1-1/5-1/5)*1/3 = 3/5*1/3 = 1/5 - received the 3rd 4)(1-3/5): 2 = 2/5:2 = 1/5 - on 1/5 the 4th friend and Vaasa received, therefore to all got equally, on 1/5 parts of pie That's all)))) 1/6*1/2=1/12 Answer: 1/12 part of all books make textbooks by mathematics. 0

All - x kN

Textbooks - (1/2 * x) kN

of the Mathematician - 1/6 * (1/2*kh) the kN

It was number 1

2) we Will designate all pie for unit

1) 1/5 - received the 1st

2) (1-1/5)*1/4 = 4/5*1/4 = 1/5 - received the 2nd

3) (1-1/5-1/5)*1/3 = 3/5*1/3 = 1/5 - received the 3rd

4)(1-3/5): 2 = 2/5:2 = 1/5 - on 1/5 the 4th friend and Vaasa received, therefore to all got equally, on 1/5 parts of pie

That's all))))

1/6*1/2=1/12

Answer add  