Question: 2c - 5 = 9
Answer: c = 7
Since the water bill costs $35, to split it into 2 equal payments, you would simply just half $35 which is $17.50.
Answer:
the first step is wrong
it should be 4(x-4)/(x+1)(x-4) - (x+2)/(x-4)(x+1)
A is not linear A linear equation is an equation of a straight line, which means that the degree of a linear equation must be
for each of its variables. In this case, the degree of variable
Not Linear
Let a = speed of the plane A, and b = speed of plane B.
(Assume that the net effect of the wind is negligible.)
From the first sentence, the distance between A and B after each travels for 1 hour is a + b miles. From the second sentence, after 45 minutes, or 0.75 hour, the distance between A and B is 200 miles. Plane a has traveled 0.75a, while plane B has traveled 0.75b.
Hence a + b = 0.75a + 0.75b +200
==> 0.25(a + b) = 200.
==> a + b = 800.
Therefore planes A and B are 800 miles apart now.
