Using substitution and graphing, I found that x=0.833 and y=1.6
(0.833, 1.6)
Answer:
x = 30
Step-by-step explanation:
Let's set up an equation to represent this problem:
2/5 * x + 15 = 27
subtracting 15 from both sides,
2/5 * x = 12
Multiplying 5/2 to both sides,
5/2 * 2/5 * x = 12 * 5/2
1*x = 30
x = 30
Answer:
f(x) = x-6
Step-by-step explanation:
Since x = 6, which is a positive number, the answer should be of f(x) = x-6.
When x = -6, which is a negative number, then the answer should be f(x) = x+6.
Y varies directly with x.
⇒ y = ky where k is a constant.
Given that x = 4 when y - 26,
26 = 4k
k = 6.5
Therefore
⇒ y = 6.5x
When y = 65,
65 = 6.5x
x = 10
Answer: x = 10
