Independent variables must be the amount of cans you buy of cat food. The dependent variable, well that must be the cost. Depending on how many cans you buy, the cost changes! :)
From A :50/hour. *x(hour)
From B : 30/hour *x(hour)
50 *x +30 *x =400
80 *x=400
x=5(hour)
Then the train from A will make 50 *5=250 miles
(These is fisik)
Answer:
-3x+6
Step-by-step explanation:
-2x - 1 - x + 7
collect like terms and calculate:
-3x+6
