Answer:
x=2
Step-by-step explanation:
5x - 6(x + 1) + 8 = 0
Distribute
5x -6x-6+8 =0
Combine like terms
-x+2 = 0
Add x to each side
-x+2+x = 0+x
2 =x
Consider c as the cost of the widget so that our given equation is
c = 0.1w^2 + 20w
Take the derivate of the equation.
d/dt (c = 0.1w^2 + 20w)
dc/dt = 0.2w + 20
Given dc/dt = $16000 per month, the number of widgets would contain:
16000 = 0.2w + 20
-0.2w = 20 - 16000
-0.2w = -15980
w = 79900 widgets
Okay. So we have to do division, because you're dividing 4 1/4 (17/4) tablespoons of medicine by 5 doses. The formula for multiplying fractions is keep, change, flip. 17/4 * 1/5 is 17/20. 17/20 tablespoon of medicine is supposed to be taken in each dose.
Answer:
0
Step-by-step explanation:
2 + 2 = 4 and then 4 - 4 = 0
