Asked Feb 24, 2020

Addition method

The college store paid $1670 for an order of 45 calculators.  the store paid $11.00 for each scientific calculator.  The others, all graphing calculators, cost $58.00 each.  How many of each type of calculator was ordered.


Expert Answer

Step 1

Let they ordered x scientific calculator and y graphing calculator. 

So, Tot...

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