michell282
07.04.2020 •
Mathematics
Alice has three boxes to carry. One box has of mass of 1.453 kilograms. The second box has a mass of 3.8 kilograms. The third box has a mass of 11.39 kilograms. What is the total mass of the three boxes?
A. 0.6392 kilogram
B. 15.1643 kilograms
C. 16.643 kilogram
D. 2.630 kilograms
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Ответ:
It's C:16.643
You just add it
1.453+11.39+3.8
And it equals 16.643
Ответ:
y - 3y = - 1 - 1 ;
- 2y = - 2 ;
y = ( -2 ) / ( - 2) ;
y = 1 ;
And 1 ≠ -1 ; 1 / 3 ;
The solution is 1 ;