Suppose we want to choose 5 objects, without replacement, from 9 distinct objects. (a) How many ways can this be done, if the or
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Answer:
Her net rate of pay in dollars per hour after the expense = $26
Step-by-step explanation:
Given:
Driver travels for 2 hours.
Speed = 60 miles per hour
Her car runs at the rate of 30 miles per gallon of gasoline.
She is paid $0.50 per mile.
Expenses is price of gasoline at the rate of $2.00 per gallon.
To find her net rate of pay in dollars per hour.
Solution:
In one hour the driver travels = 60 miles
For each mile she is paid = $0.50
<em>So, for 60 miles she will be paid = </em><em />
<em />
In a gallon of gasoline the car travels = 30 miles
<em>So, to travel 60 miles, the car would require = </em><em> gallons of gasoline</em>
1 gallon of gasoline cost = $2.00
<em>Expenses for 2 gallons of gasoline = </em><em />
<em />
So, in one hour she gets paid =$30 and her expenses for an hour drive = $4.
Thus, her net rate of pay in dollars per hour after the expense =