Question

gasoline sells for 1.62 euros/liter in bonn. what is the price in u.s. dollars per gallon?
________ us dollars / gal
(notice that the units are included for you, please do not type them in with your answer)

for your information:
1 gal = 3.785 l
1 us dollar = 0.93 euro

Explanation:

Step1: Convert euros to dollars

Since 1 US dollar = 0.93 euro, then 1 euro = $\frac{1}{0.93}$ US dollars. The price of gasoline is 1.62 euros/liter, so in dollars per liter it is $1.62\times\frac{1}{0.93}$ dollars/liter.
$1.62\times\frac{1}{0.93}=\frac{1.62}{0.93}\approx1.742$ dollars/liter

Step2: Convert liters to gallons

Since 1 gal = 3.785 L, then to get the price in dollars per gallon, we multiply the price in dollars per liter by the number of liters in a gallon. So the price in dollars per gallon is $1.742\times3.785$.
$1.742\times3.785 = 6.59347\approx6.59$

Answer:

6.59