If f(x) varies directly with
If f(x) varies directly with x then we use equation f(x) = kx
where k is the constant of proportionality
So equation becomes
We use the information and find out k
f(x)= 10
now we use the value of k and find the value of f(x) when x=3
f(x) = 10
The value of f(x) = 10 when x= 3
Answer:
3
Step-by-step explanation:
A factor is 3 because 54xy / 3 = 18xy, 45x / 3 = 15x, 18y / 3 = 6y, and 15 / 3 = 5
Answer:
D
Step-by-step explanation:
Start by writing out w in terms of x. After one year, there is 1.08*x dollars in the account. x dollars are then deposited, giving us a total of 1.08*x + x (normally we would simplify this to 2.08 but looking at the answers this is not a good idea.) Next, multiply by 1.08 to account for the 2nd year's interest. This brings to total to w = 1.08(1.08*x + x) = (1.08^2)*x + 1.08*x. Factoring out x, we are left with w = (1.08^2 + 1.08) * x. Dividing both sides by (1.08^2 + 1.08), we are left with x = w/(1.08^2 + 1.08) so the answer is d.
Answer:
108
Step-by-step explanation:
Hope I help :)