thnguyen0720
03.03.2021 •
Mathematics
Jim has 30 4/8 bottles of water, his friend dan has 16 ¼ bottles of water how much more does jim have.
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Ответ:
14 1/4
Step-by-step explanation:
Ответ:
30 4/8 - 16 1/4
= 30 - 16 + 4/8 - 2/8
= 14 + 4/8 - 2/8
= 14 + 2/8
= 14 2/8
=14 1/4 (Simplified)
Therefore, Jim has 14 1/4 more bottles of water.
Ответ:
This is the same as showing the following system of equations doesn't have a solution:
or in matrix form,
The quickest way to check if there is a solution is to check whether the coefficient matrix is invertible. If its determinant is 0, then it is not invertible.
And the quickest way to show that the determinant is 0 is by observing that the third row is a linear combination of the first two rows:
(-2, 9, 6) - (-3, 2, 1) = (-2 + 3, 9 - 2, 6 - 1) = (1, 7, 5)
So there are indeed no such scalars c₁, c₂, and c₃.