Question

Resolva:

⅔•¾ : 5/8

3/7•A = 90

0,1x=100

1y/18 =0,01

2/3B = 4/9

3x/4 =0,3

5/18 • 2/5 : 3/4 •1/3

Y•¾ • 4/6 =1/5

Answer 1

2/3 * 3/4 : 5/8 = 2/3 * 3/4 * 8/5 = 4/5
3/7 * A = 90 -> A = 90 : 3/7 = 90 * 7/3 = 210
0,1x = 100 -> x = 100/0,1 = 1000
1y/18 = 0,01 -> y = 0,01 * 18 = 0,18
2/3 * B = 4/9 -> B = 4/9 : 2/3 = 4/9 * 3/2 = 2/3
3x/4 = 0,3 -> 3x = 0,3 * 4 = 1,2 -> x = 1,2 / 3 = 0,4
5/18 * 2/5 : 3/4 * 1/3 = 1/9 : 1/4 = 1/9 * 4/1 = 4/9
Y * 3/4 * 4/6 = 1/5 -> Y * 1/2 = 1/5 -> Y = 1/5 : 1/2 = 1/5 * 2/1 = 2/5