Answer:
270 people
Step-by-step explanation:
If we think of the ratio as "parts", it becomes very easy!
- 3 parts get their news from Frontbook
- 7 parts get their news from elsewhere
In total there are 3 + 7 = 10 parts
Really, in the town there are 900 people so each part is people
And we know 3 parts get their news from Frontbook, so 3 parts is people
Answer:
$4.78
Step-by-step explanation:
subtract 6.10 from 30 = 24.90
then divide it by 5
ans : $4.78
Answer:
8, 9
Step-by-step explanation:
So use pemdas to figure out x, you can use that to figure out the fractions and stuff
These are the important equations:
(1) q = 0.4x0.6y
(2) r = 26000x + 365y (r is the annual operating costs)
Since q is given (q=1000), we can express y in terms of x:
1000 = 0.4x0.6y
y = 1000/[(0.4x)(0.6)]
y = 12500/3x ----> we substitute this to equation 2
r = 26000x + 365(12500/3x)
r = 26000x + 1520833.33x^-1
r should be minimized. In calculus, we differentiate this and equate to zero. Then we can determine x, which is the number of employees.
dr/dx = 26000x - 1520833.33x^-2 = 0
1520833.33/x^2 = 26000
26000x^2 = 1520833.33
x^2 = 58.4935
x = 7.6
x=8
Thus, you should employ 8 employees to produce 1,000 automobiles a year with a minimum annual operating cost.