Question

The Everton College store paid $1587 for an order of 45 calculator. The store paid $11 for each scientific calculator. The other, all graphin calculators, cost the store $53 each. How many of each type of calculator was order?

Answer 1

let x= number of scientific calculator
y= number of graphing calculators
x+y = 45 -----> x=45-y
11x+53y = 1587

11(45-y) +53y = 1587
495 -11y +53y = 1587
42y = 1092
y = 26

x=45-y = 45-26 = 19

Answer 2

thanks

Answer 3

my pleasure XD