Respuesta :
Answer:
5x + 8y = 66, x + y = 9.
Where, x = people who ordered sandwich for $5
y = people who ordered a combo for $8
Step-by-step explanation:
Let x be the number of people who ordered only a sandwich for $5 and y be the number of people who ordered a combo for $8,
So, the total number of people = x + y,
Since, there are 9 people ( Sonji and her 8 friends ),
⇒ x + y = 9,
Also, the amount paid by them = 5x + 8y
Given, they paid totaled $66.00,
⇒ 5x + 8y = 66,
Hence, the system of equations that represents the number of meals of each type that Sonji and her friends purchased is,
5x + 8y = 66, x + y = 9.