If k > 0, x + k = y, and y + 4k = z, what is the ratio between z - x and y - x ?
If k > 0, x + k = y, and y + 4k = z, what is the ratio between z - x and y - x ?
Answer/Solution
5 to 1
Steps/Work
y-x = k
z-y = 4k
Let's add the two equations together:
z-x = 5k
The ratio of z-x to y-x is 5:1.
The answer is E.
z-y = 4k
Let's add the two equations together:
z-x = 5k
The ratio of z-x to y-x is 5:1.
The answer is E.