Jane Little rents a car for $39.00 a week. She pays $15.00 per week for the insurance, and spends $17.50 weekly on gas. What wil
2 answers:
Answer:
$286.
Step-by-step explanation:
1 month = 4 weeks
Jane Little rents a car for $39.00 a week.
She pays per week for insurance = $15
She spends weekly on gas = $17.50
So, total she spend per week = $39+$15+$17.50
=$71.5
Since 1 month = 4 weeks
So, her cost per month =
=
Hence her total cost per month will be $286.
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Answer:
--- Objective function
Interval =
Step-by-step explanation:
Given
Represent the number with x
The required sum can be represented as:
Hence, the objective function is:
To get the the interval, we start by differentiating w.r.t x
<em>Using first principle, this gives:</em>
Equate S'(x) to 0 in order to solve for x
Subtract 1 from both sides
Multiply both sides by -1
Cross Multiply
Take positive square root of both sides because x is positive
Representing x using interval notation, we have
Interval =
To get the smallest sum, we substitute 1 for x in
<em>Hence, the smallest sum is 2</em>