a basketball player scored 30 times during one game. she scored a total of 54 points, two for each two point shot and one for each free throw. how many two point shots did she make? how many free throws?
so far i did
x+y=30
2x+y=54
what are next steps?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (pphalke):
please help
@ganeshie8 @ace-n-it
jimthompson5910 (jim_thompson5910):
x = # of two-point shots made
y = # of free throws made
solve the first equation for y
x+y=30
x+y-x=30-x
y = 30-x
plug this into the other equation
2x+y=54
2x + (30-x) = 54
2x - x + 30 = 54
x+30 = 54
I'll let you finish up
OpenStudy (pphalke):
x=24
OpenStudy (pphalke):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
let me check @pphalke
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
jimthompson5910 (jim_thompson5910):
correct, nice job
jimthompson5910 (jim_thompson5910):
if x = 24, then what is y?
OpenStudy (pphalke):
do i put the x i got in 2x+y=54?
jimthompson5910 (jim_thompson5910):
you can plug it into that or into x+y = 30
jimthompson5910 (jim_thompson5910):
x+y = 30 may be easier
actually y = 30-x may be easiest
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (pphalke):
i got x=24 and y=6 when i pluged it in to 2x+y=54? does that sound right
OpenStudy (pphalke):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
let's check
x+y = 30
24+6 = 30
30 = 30 ... works
2x + y = 54
2*24 + 6 = 54
48 + 6 = 54
54 = 54 ... works
answer is confirmed
OpenStudy (pphalke):
so 24 and 6 are right answers so that means the basketball player made 24 two point shots and 6 free throws