Question

The price of apples went from $1.99 per lb to $3.19 per lb in four years. Find the rate of change of the price of apples.

Answer 1

$0.30 per lb per year

Explanation:

Answer 2

Answer: $0.3 per lb per year.

Explanation:

We know that the rate of change in price is given by :-

`r=\frac{\text{Change in price}}{\text{Time}}`

Given: The price of apples went from $1.99 per lb to $3.19 per lb in four years.

Change in price =
`\$3.19-\$1.99=\$1.2`

Time = 4 years

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

`r=(1.2)/(4)=0.3`

Hence, the rate of change of the price of apples= $0.3 per lb per year.