Write an algebraic expression for the specified quantity.A merchant has light roast coffee worth $3.50 a pound that she wishes to mix with dark roast coffee worth $6.99 a pound. Let x = the number of pounds of dark roast coffee in a 80-pound mixture of light roast coffee and dark roast coffee. Write an algebraic expression in x for (i) the number of pounds of light roast coffee in the 80-pound mixture; (ii) the value of the dark roast coffee in the 80-pound mixture; (iii) the value of the light roast coffee in the 80-pound mixture.

Question

A. (i) 80 - x
(ii) $6.99(80 - x)
(iii) $3.50x
B. (i) 80 + x
(ii) $6.99x
(iii) $3.50(80 + x)
C. (i) 80 + x
(ii) $6.99(80 + x)
(iii) $3.50x
D. (i) 80 - x
(ii) $6.99x
(iii) $3.50(80 - x)

Answer 1

Answer: D