Answer:
The correct answer is: 2. t=0.45a
Step-by-step explanation:
Let t be the price of apples
and a be the number of apples
The price and quantity are directly proportional
[tex]t \propto a[/tex]
Removing the proportionality symbol introduces a proportionality constant in the equation
[tex]t = ka[/tex]
So far we know that cost of 6 apples is $2.70
Putting in the equation
[tex]2.70 = k (6)\\k = \frac{2.70}{6}\\k = 0.45[/tex]
Putting the values of k will give us:
[tex]t = 0.45a[/tex]
Hence,
The correct answer is: 2. t=0.45a