Answer:
(x , y) = (-2 , 1)
Step-by-step explanation:
multiply both sides by -1
sum the equations vertically to eliminate at least one variable
divide both sides by -8
substitute the value of y into the equation
now solve for x using that y=1
<span>Equation:
train distance + plane distance = 1300 miles
50x + 275x = 1300
x(325) = 1300
x = 4 hours
4x2=8
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The trip took 8 hrs.</span>
Answer:
The first term is 2.5
Step-by-step explanation:
The first term is 2.5 and it decreases 0.5 each time.
x= -0.5n+2.5
Step-by-step explanation:
B) opposite sides are congruent !!!!!!