Answer :
Answer: So there are three ways...
$850=150(1)+100(7)
$850=150(3)+100(4)
$850=150(5)+100(1)
Step-by-step explanation:
The equation is 150x+100y=850 where x and y are any whole number of items that she was able to purchase with $850
So there are three ways...
$850=150(1)+100(7)
$850=150(3)+100(4)
$850=150(5)+100(1)
These are the purchases where x is pens and y is pencils