A chef bought $17.01 worth of ribs and chicken. Ribs cost 1.89 per pound and chicken costs 0.90 per
pound. The equation 0.90 +1.89r = 17.01 represents the relationship between the quantities in this
situation.
Show that each of the following equations is equivalent to 0.9c + 1.89r = 17.01. Then, explain when
it might be helpful to write the equation in these forms.
a. c=18.9-2.1r. b. r= -10÷2c+9
