rasheem0
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The price of a gallon of milk went from $2.70 to $3.50 in four years. Find the rate of change of the price of milk.
A) $0.10 per year
B) $0.20 per year
C) $0.50 per year
D) $0.80 per year

Respuesta :

pilotdolphin9
b. $0.20 per year ............
JeanaShupp

Answer: B)$0.20 per year

Step-by-step explanation:

Given: The previous price of a gallon of milk = $2.70

The new price of a gallon of milk = $3.50

Time to increase price = 4 years

Now, the rate of change of price of milk is given by:-

[tex]k=\frac{\text{New price-Previous price}}{Time}\\\\\Rightarrow\ k=\frac{3.50-2.70}{4}\\\\\Rightarrow\ k=\frac{0.80}{4}\\\\\Rightarrow\ k=20[/tex]

Hence, the rate of change of the price of milk= $0.20 per year

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