Answer:
In this case, y=30 and x=6, so 30=k*5<=> k=30/6=5.
Step-by-step explanation:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.
2400 + 100x = 2200 + 120x
2400 - 2200 = 120x - 100x
200 = 20x
200/20 = x
10 = x <== they would have to sell 10 systems
Answer:
-0.5
Step-by-step explanation:
Answer:
The answer is D
Step-by-step explanation:
Determinants can only be found in matrices where the dimensions are square.
2.5•2.5= 5 , 4•4=8 , 8+5=12