H + c = 605
c = h + 55
h + h + 55 = 605
2h + 55 = 605
2h = 605 - 55
2h = 550
h = 550/2
h = 275 <== there were 275 hamburgers sold on Friday
c = h + 55
c = 275 + 55
C = 330...there were 330 cheeseburgers sold on Friday
How many friends does Andrea have? If so then:
2 - 2/3*F = A
where F is the friends servings
and A is Andrea's servings.
2x+y=0
y=-4
(x is 2 y is -4)
Answer:
B.
Step-by-step explanation:
It is just common sense. The top numbers have to be smaller than the top numbers
