SOLUTION: The college paid $1718 for an order of 47 calculators. The store paid $10 for each scientific calculator. The others were all graphing calculators these calculators cost $58 each.

Question 137880: The college paid $1718 for an order of 47 calculators. The store paid $10 for each scientific calculator. The others were all graphing calculators these calculators cost $58 each. How many of each type a calculator were sold?
Help again please, no clue how this is done.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The college paid $1718 for an order of 47 calculators. The store paid $10 for each scientific calculator. The others were all graphing calculators these calculators cost $58 each. How many of each type a calculator were sold?
:
Let x = no. of graphing calcs
We are told there were a total of 47 calculators therefore:
(47-x) = no. of scientific calcs
:
Write an equation from the information given
:
cost of x graphing calcs + cost of (47-x) scientific calcs = $1718
58x + 10(47-x) = 1718
:
Multiply what's inside the brackets:
58x + 470 - 10x = 1718
:
58x - 10x = 1718 - 470
:
48x = 1248
x =
x = 26 graphing calcs
:
47 - x =
47 - 26 = 21 scientific calcs
:
:
Check solutions with total cost equation
26(58) + 21(10) =
1508 + 210 = 1718; confirms our solutions
RELATED QUESTIONS
The Everton College store paid $1564, for an order of 42 calculators. The store paid $10... (answered by rfer)

The Everton College store paid $1525 for an order of 45 calculators. The store paid $10... (answered by jorel1380)

the everton college store paid 1870 for an order of 49 calculators.The store paid $10 for (answered by oberobic)

Everton College Store paid $1666 for 47 calculators. The store paid $10 for each... (answered by swincher4391)

The Everton College Store paid $1792 for an order of 51 calculators. The store paid $9... (answered by oberobic)

The Everton College store paid $1650 for an order of 47 calculators. The store paid $8... (answered by rfer)

The Everton College store paid $1755 for an order of 49 calculators. The store paid $8... (answered by josmiceli)

the everton college store paid $1683 for an order of 45 calculators. The store paid... (answered by mananth)

The Everton College store paid $1740 for an order of 46 calculators. The store paid $8... (answered by JBarnum)