word problem

Question

The Everton College store paid $1755 for an order of 45 calculators. The store paid $11 for each scientific calculator. The others, all graphing calculators, cost the store $56 each. How many of each type of calculator was ordered?

Answer 1

let x = # of calculators purchased @ $11

let y = # purchased @ $56.

 

x+y = 45

11x + 56y = 1755

 

A system of two linear equations!  SOLVE.  Check answers (x & y should be positive integers)