We first simplify the equation: 0.1x = 0.2x + 0.2 * 2, then we move the left side 0.1x to the right side, the 0.2 * 2 to the right side and we have -0.4 = 0.2x - 0.1x, then we have -0.4 = 0.1x, so we have x = -4
Answer:
x=5
Step-by-step explanation:
7x-5=4x+10
3x-5=10
3x=15
x=5
<span>B.Cost (10) = 8
..........................</span>
f(1) = 5
f(n) = f(n - 1) + 8
Fine, we only know f(1), so, we we need to turn f(n - 1) into f(1), to do this let's call n = 2
f(2) = f(2 - 1) + 8
f(2) = f(1) + 8
f(2) = 5 + 8
f(2) = 13
We can do this for 3 too because f(n - 1) to 3 is f(2) and we discovered it.
f(3) = f(3 - 1) + 8
f(3) = f(2) + 8
f(3) = 13 + 8
f(3) = 21
And the same for 4.
f(4) = f(4 - 1) + 8
f(4) = f(3) + 8
f(4) = 21 + 8
f(4) = 29
So the fourth term is 29, rounding to the nearest tenth its 29
