Question

An employee who lives 35 miles from her place of work can either drive or take the subway. Use the following information to compare the relative costs of these two options:1. A monthly subway pass costs $65.2. Her car gets 24 miles per gallon of gas.3. The estimated cost of gas is $2.60 per gallon.4. She works an average of 22 days per month.How much would the employee save per month if she takes the subway? (Round to the nearest dollar.)

Answer 1

For this problem, let's compute the monthly cost of using her car. The amount of gas is

$\frac{(35mi)\cdot2\cdot22}{24\text{ mi/gal}}=64.17\text{gal}$

Therefore, she spends

$64.17\text{ gal}\cdot(2.60\text{ dollars/gal)=}166.84\text{ dollars}$

Then, she will save $166.84-$65.00=$161.84, which is approximately $162.00.