You divide the total cost of the 4 items by 4 to find the cost on 1 item.
Answer:
the system of equation has infinite solution
Step-by-step explanation:
, 
Solve the first equation for x_2
Subtract 5x1 on both sides


Now substitute -5x1 on second equation



0=0
So the system of equation has infinite solution
Answer:
x ≤ 4.9
Step-by-step explanation:
5x +1/2≤ 25
Multiply each side by 2 to get rid of the fractions
2(5x +1/2)≤ 25*2
10x +1 ≤ 50
Subtract 1 from each side
10x+1-1 ≤50-1
10x ≤ 49
Divide by 10 on each side
10x/10 ≤ 49/10
x ≤ 4.9
About 6 or 7 deaths per minutes because if you divided 3.6 million by the amount of minutes in a year (525,600) you get 6.84931506 on and on.