As y varies directly with x, there is a proportionality constant. As x increases by that certain constant, y also increases. We equate:
y = kx
where k = proportionality constant.
Given the condition, y = 5 when x = 4, then we solve for k:
5 = k(4)
k = 5/4 or 1.25
When y = 8, then
8 = (5/4)(x)
x = 8/(5/4) = (8)(4/5) = 32/5 or 6.4 (ANSWER)
Answer:
11/30 or 0.36
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
(2*(-5)^-1*3^5)^2/(3*-5^0*3^4)^2 =4/25
Knowing the GCF and LCM helps me when me add and subtract and multiply fractions by breaking the numbers in to 2 different sections and looking at my table of contents