A family went on vacation and used 5.4 gallons of gasoline to travel 150 miles. How many total gallons of gasoline will they need to travel 200 more miles?

Respuesta :

[tex]\bf \begin{array}{ccll} \stackrel{fuel}{gallons}&miles\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 5.4&150\\ g&200 \end{array}\implies \cfrac{5.4}{g}=\cfrac{150}{200}\implies \cfrac{5.4\cdot 200}{150}=g[/tex]
I would use a ratio
so 5.4 gallons/150 miles = ?gallons/200 miles
so 5.4gallons*200 miles = ?gallons*150 miles
5.4gallons*200miles/150miles = ? gallons
?gallons = 7.2 gallons