Найдите процентное содержание спирта в смеси ,полученной при смешивании 30 граммов 30%-го и 20 граммов 40%-го раствора.
натуральные числа.дроби.процент

Quiz
•
Mathematics
•
11th Grade
•
Medium
Sevil Ismayilova
Used 14+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
34%
24%
70%
50%
10%
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Вычислите значение выражения:
2
5,8
29
1
3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Вычислите 25% от 320.
60
40
80
56
160
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Найдите х из пропорции: 0,1:0,02=у:0,8
0,4
4
0,004
40
400
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Найдите х,если
10
4
12
8
6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Решите уравнение :
7
4
3
15
12
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Решите уравнение:
2
3
6
7
14
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