Three workers, Murat, Askar and Arman, were hired to renovate the office space. Murat will complete the renovation in two days. Askar will do it in three days, and Armand in six days. Answer the following questions:
Question 1: How many days will it take for workers to complete the repair work together?
Question 2: If Murat first does 1/3 of the work, then Askar does the rest, and Armand does the rest, how many days will the work be completed?
Question 3: Who carries out repairs quickly: when does Murat work alone? or when Askar and Arman work together? Question 4: If Murat, Askar and Arman do the work together and receive 45,000 tenge, how much will each of them receive?
Question 5: On the first day Murat worked alone, and from the second day he worked
Пошаговое объяснение:
verified online mektep
1)-22,914
2)4,07
3)-45
4)3
5)1.3900*65:100=25350 (ч) - не приняло участие
ответ:25350 человек
2.11 - 55 %
х - 45%
х=45*11/55=9
Всего:9+11=20 км
ответ:20 км
3. 5,6 х-22,4-4,8 х+20=0,0,8 х-22,4=0,0,8 х=22,4, х=3
6)1.Округлив числа a и b с точностью до 0,01, вы числите сумму a+b и разность a-b :
a) a=5,9283, b=2,694 б) a=36,483, b=44,937
2.Округлите числа a и b с точностью до двух значащих цифр, вычислите произведение a . b и частное a:b. Результат округлите с точностью до двух значащих цифр: a) a=32,27, b=4,263 б) a=46,62, b=5,729
5/9*(3.6a-3 3/5b)-3,5*(4/7a-0,2b)=2a-2b-2a+0.7b=-1.3b