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:
A. 5400-8x
B. $600
Step-by-step explanation:
5400-8x=600
8x=5400-600
x=4800/8=600
Answer:
A
Step-by-step explanation:
He borrowed money so he has -5 dollars and but he payed 2 back, so now he needs to pay $3
The velocity, slope, of a line is always (y2-y1)/(x2-x1), in this case:
slope=(8-2)/(7-9)=6/-2=-3
m=-3
