SOLUTION: The Everton College store paid $1755 for an order of 49 calculators. The store paid $8 for each scientific calculator. The others, all graphing calculators, cost the store $55 each

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Question 302030: The Everton College store paid $1755 for an order of 49 calculators. The store paid $8 for each scientific calculator. The others, all graphing calculators, cost the store $55 each. How many of each type of calculator was ordered?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = number of graphing calculators bought
49+-+x = number of scientific calculators bought
8%2A%2849+-+x%29+%2B+55x+=+1755
392+-+8x+%2B+55x+=+1755
47x+=+1363
x+=+29
49+-+x+=+20
20 scientific and 29 graphing were bought
check:
8%2A%2849+-+x%29+%2B+55x+=+1755
8%2A%2849+-+29%29+%2B+55%2A29+=+1755
160+%2B+1595+=+1755
1755+=+1755
OK