Answer:
just follow the rules
Step-by-step explanation:
Cramer's rule applies to the case where the coefficient determinant is nonzero. ... A simple example where all determinants vanish (equal zero) but the system is still incompatible is the 3×3 system x+y+z=1, x+y+z=2, x+y+z=3.
Write the system as a matrix equation. ...
Create the inverse of the coefficient matrix out of the matrix equation. ...
Multiply the inverse of the coefficient matrix in the front on both sides of the equation. ...
Cancel the matrix on the left and multiply the matrices on the right.
To get 10% of 40, you move the decimal point one way to the left. So 10% of 40 is 4
Now you need 2% and because you know 10% is 4, you divide that by 10 and multiply it by 2 because of the 2%
4/10=.4 .4•2=.8
Now you add them
4+.8=4.8
12% of 40 is 4.8
Answer:
Volume = 72 cm³
Step-by-step explanation:
Volume = 
<u><em>Where a = 6, h = 6</em></u>
Volume = 
Volume = 36 * 2
Volume = 72 cm³
Answer:
10/13
Step-by-step explanation:
total candies = 62
yellow and green candies = 20
P (yellow or green candies) = 20/62
=> 10/13
