Answer:
30 meters per second I think
Answer:
275
Step-by-step explanation:
t = total sold
c = cheeseburgers h = hamburgers
c + h = t total is equal to cheeseburgers + hamburgers
we know that
c + h = 481
and that c = h - 69
so we can rewrite the first equation as
(h-69) + h = 481
2h = 481 + 69
2h = 550 h=550/2=275
so there 275 hamburgers were sold
You said . . . . . 2/3 + x/3 = 4
Subtract 2/3 from each side: x/3 = 3-1/3
Multiply each side by 3: 3 · (x/3) = 3 · (3-1/3)
Simplify that mess : x = 10