Question

The table represents a proportional relationship. Write an equation to represent the relationship.

The table has two rows and three columns. The first row is cups of flour, x. The second row is loaves of bread, y. Six cups of flour, two loaves of bread. Nine cups of flour, three loaves of bread. Fifteen cups of flour, five loaves of bread.

Enter the correct equation in the box.

Answer 1

`C = (1)/(3) L`

Explanation:

Number of cups of flour/number of loaves = constant, k

We can see this ratio is constant throughout the table

6/2 =9/3 = 15/5 = 3

Therefore the equation can be written as

C/L = 3

or

C = (1/3)L

where C is the number of cups needed to make L loaves