Seven Hundred Gallons of 89-Octane Gasoline Is Obtained by Mixing $\left\{ \begin{array} { c } x + y = 700 \\87 x + 92 y = 62300\end{array} \right.$

Multiple Choice

Seven hundred gallons of 89-octane gasoline is obtained by mixing 87-octane gasoline with 92-octane gasoline.How much of each type of gasoline is required to obtain the 700 gallons of 89-octane gasoline? Use this system of linear equations there x and y represent the number of gallons of the 87-octane gasoline and 89-octane gasoline. $\left\{ \begin{array} { c } x + y = 700 \\87 x + 92 y = 62300\end{array} \right.$

A) 87 -octane: 89 gal; 92-octane: 280 gal
B) 87 -octane: 280 gal; 92-octane: 420 ga
C) 92 -octane: 89 gal; 87-octane: 280 gal
D) 87-octane: 420 gal; 92-octane: 280 gal
E) 92-octane: 280 gal; 87-octane: 89 gal