His friends ate 1/2 of 3/4..." of " means multiply
1/2 * 3/4 = 3/8
so his friends ate 3/8 of the bag of popcorn
10 % OF THE PAYMENT IS 600/10=60 DOLLARS
EACH PAYMENT WAS 60 DOLLARS<span />
Answer:
The frequency by which the equipment should receive periodic maintenance is
Step-by-step explanation:
A Wellbull distribution is mathematically represented as
Where x is the frequency that the equipment should receive periodic maintenance
probability of a breakdown before the next scheduled maintenance is mathematically represented as
Substituting 2 for and 60 for 0.05 for P(x)
Let
=>
=>
Multiply both sides by minus
=>
Substituting this into the equation
Integrating and substituting back for x
substituting for the range of x and 0
Taking ln of both sides
making x the subject of the formula
$6.25 × h = c
h = hours, c = total cost
$31.25 for 5 hours. $6.25 per hour
$50 for 8 hours. $6.25 per hour