Help for a metal?!?!
The art museum had a total of 224 visitors on Tuesday. Visitors older than 18 paid $12 for admission. Visitors 18 years or younger paid $8 for admission. The museum collected a total of $2,520. How many visitors were 18 or younger?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
I don't like metal ;c
OpenStudy (laughoutloud):
42
OpenStudy (cj49):
let visitors older den 18 be x and younger than 18 b y
12x+8y=2520
simplyfy the equation. den substitute the values.
OpenStudy (anonymous):
42 people were under 18,
OpenStudy (anonymous):
224 total people.
x<12
y> 8
2520 total made.
12x + 8y = 2520
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
laughoutloud can you explain how it's 42?
OpenStudy (anonymous):
8u + 12o = 2520
u + o = 224
-
o = u - 224
8u + 12(u - 224) = 2520
8u + 12u - 2688 = 2520
20u - 2688 = 2520
20u = 5208
u = 260.4
OpenStudy (anonymous):
Same with lupita
OpenStudy (anonymous):
Okay, thank you!
OpenStudy (anonymous):
yw welcome
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
Can one of you help me with another question?
OpenStudy (anonymous):
sure
OpenStudy (anonymous):
Thank you! Here is the next question:
Solve the following system of equations:
-2x + y = 1
-4x + y = -1
OpenStudy (anonymous):
@lupita1995
OpenStudy (anonymous):
@lupita1995
Still Need Help?
Join the QuestionCove community and study together with friends!