Connecting Unit Rate and k

Connecting Unit Rate and k
Introduction

Unit rates are closely connected to the constant of proportionality, often represented by the symbol k. This connection helps explain how two quantities change together in pr...

At a fruit market, Rachel buys 2 pounds of apples for $5, and John buys 3 pounds for $7.50.

They buy different quantities but the cost per pound of apples is the same for both.

To find the cost for one pound, divide the total cost by the number of pounds.

This price per pound is called the unit rate. A unit rate shows how one ...