The equation you can use is x + 3x = 428 with x as the number of cheeseburgers and 3x the number of hamburgers
you solve for x and get 4x= 428 and x=107
so 321 hamburgers were sold that day.
frankly yes, because when you want inverse a function you must inverse it with line x=y
so when you inverse a function Df and Rf will convert together!
Answer:
0.4 of the chocolate bar.
Step-by-step explanation:
32 degees, 43.8 degrees, 53.8, 63.8 Yes they are proportional