A jeweler orders necklaces from a website that offers $6 shipping for any-size order. Each necklace costs $7. The jeweler wants to know the total cost of ordering n necklaces. What is the independent (input) variable?

Mathematics · Middle School · Tue Nov 03 2020

Answered on

The cost calculated is dependent on the number of necklace brought. The more value of n is, the more cost will have to be paid.

Cost = Tax  + $7 times number of necklace

c = 6 + 7n

 

Thus,

The variable n (the number of necklace) is the independent (input) variable.