Grapes are sold by the pound. The table shows the total cost for different weights.
2 answers:
Answer:
Option D.
Step-by-step explanation:
Let p be the number of ponds and c be the total cost of p .
We know that cost is directly proportional to quantity.
.... (1)
where, k is constant of proportionality or cost of 1 pound.
From the given table it is clear that the cost of 3 pound is $7.38.
Substitute c=7.38 and p=3 in the above equation.
Divide both sides by 3.
Substitute the value of k in equation (1).
The equation c=2.46p expresses the relationship between the number of pounds, p, and the total cost, c.
Therefore, the correct option is D.
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