Answer:
You can use Gaussian Elimination.
Double both sides of the first equation and add the second equation.
6x + 4y = 8
5x - 4y = 3
---------------
11x = 11
x = 1
5 - 4y = 3
-4y = -2
y = 1/2
Step-by-step explanation:
Answer:
b/c+30
Step-by-step explanation:
Is there a picture? or model?
Consider this option:
C³₂₇=27!/(3!*24!)=25*13*9=2925 ways to select 3 students.
Answer:
-14
Step-by-step explanation:
forget the parenthesis. just think of it as -6-8, for instance on a number line, if you start on -6 and you SUBTRACT 8, then youre going left, so youd be going further into the negative numbers. you can also think of it as 6+8, which would be 14, then slapping the negative sign back on it.
