![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
0.7/X-0.03/0.17-0.2X=1
0.7/X-0.03/0.17-0.2X=1
3x-7(1.7-2x)=2.1
17x-11.9=2.1
x=14/17
How much is math 12 + (- 16) - (- 6)
12 + (- 16) - (- 6) equals 2
A math problem 15,16,18,19,20,31
There are six commodities in the shopping mall. The prices are 15, 16, 18, 19, 20 and 31 respectively. Five of them are sold to a and B. the price of a is twice that of B. which one is not sold? A) 16 b) 18 C) 19 d) 20
1 + 2 = 3 15 / 3 = 5 16 / 3 = 5.1 18 / 3 = 6 20 / 3 = 6.2 31 / 3 = 10.1 19 / 3 = 6.1 (1 + 2 + 1 + 1) / 3 = 1.2 the rest is the box with the remainder 2, that is, the box with 20
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