a bag has 6 green, 4 red, 5 yellow and 15 blue marbles what is the possibility that the marble is red or blue
1 answer:
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The midpoint formula for a segment is:
apply to points R and P
using the definition of slope find the slope of the segment
apply to points R and P
to lines are parallel when the slopes are the same
two lines are perpendicular when the product of the slopes is equal to -1
Answer:
Step-by-step explanation:
To properly apply the substitution method, it will be better for us to rearrange the system of equations to have similar variables on the same side
We can simply evaluate equation 1 to have
y = -20
From the first equation alone, we can evaluate the value of y as -20. This is because only one unknown is present in equation one, hence a single equation is sufficient enough to evaluate it. If to unknowns were present, the two equations would have been utilized to evaluate the solution.