Question

Kayla notices that she can buy snacks in bulk at a grocery store. Choose the correct formula that will help Kayla determine how much she’ll have to pay if she buys the food in bulk.
Let
t = total price
p = price per kilogram
k = number of kilograms of food

A. t=p/k
B. t=k/p
C. t = p × k
D. t = p + k

Answer 1

We are given the three variables: t = total price, p = price per kilogram, k = number of kilograms of food. In this case, we can see that multiplying price per kilogram multiplied by the number of kilograms of food is equal to price. This means the answer that translates here is t = pk. Answer is C.

Answer 2

For this case we have the following variables:
 t = total price
 p = price per kilogram
 k = number of kilograms of food
 We then have that the equation that models the total cost is a linear equation of direct variation.
 Where, the slope of the line represents the price per kilogram.
 k: is the independent variable
 t: it is the dependent variable
 The equation is given by:
 $t = p * k$
 Answer:
 C. t = p × k