SOLUTION: A basketball player makes a total of 517 shots totaling 1037 points. How many of those shots are 3 point shots and how many are 2 point shots? From the examples in the book, I

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: A basketball player makes a total of 517 shots totaling 1037 points. How many of those shots are 3 point shots and how many are 2 point shots? From the examples in the book, I       Log On


   



Question 532313: A basketball player makes a total of 517 shots totaling 1037 points. How many of those shots are 3 point shots and how many are 2 point shots?
From the examples in the book, I should have 2 equations:
x + y = 517
2x + 3y = 1037
Is this right?
How do I begin to solve?

Found 3 solutions by oberobic, stanbon, josmiceli:
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
x = 2-point shots
2x = points scored with 2-point shots
y = 3-point shots
3x = points scored with 3-point shots
.
x + y = 517
so
x = 517-y
.
2x + 3y = 1037
.
Substitute x = 517-y
.
Solve for 'y' and then substitute the value of 'y' to find 'x'.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
x + y = 517
2x + 3y = 1037
----
Multiply thru 1st equation by 2 to get:
2x + 2y = 2*517
2x + 3y = 1037
----
Subtract and solve for "y":
y = 3
---
Solve for "x":
x + y = 517
x + 3 = 517
x = 514
----
Solution: (514,3)
====================
Cheers,
Stan H.
====================

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
That's right.
+x+ = number of 2 point shots
+y+ = number of 3 point shots
(1) +x+%2B+y+=+517+
(2) +2x+%2B+3y+=+1037+
Multiply both sides of (1) by 2 and
subtract (1) from (2)
(2) +2x+%2B+3y+=+1037+
(1) +-2x+-+2y+=+-1034+
+y+=+3+
and, since
(1) +x+%2B+y+=+517+
(1) ++x+=+517+-+3+
(1) +x+=+514+
The shots are 514 two point shots and 3 three point shots
check:
(2) +2x+%2B+3y+=+1037+
(2) +2%2A514+%2B+3%2A3+=+1037+
(2) +1028+%2B+9+=+1037+
(2) +1037+=+1037+
OK