A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
HELP
A zoo train ride costs $3 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who took the ride was 30, and the total money collected was $50. What was the number of children and the number of adults who took the train ride that day, and which pair of equations can be solved to find the numbers?
anonymous
 one year ago
HELP A zoo train ride costs $3 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who took the ride was 30, and the total money collected was $50. What was the number of children and the number of adults who took the train ride that day, and which pair of equations can be solved to find the numbers?

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@joeycoulter76 @JoannaBlackwelder @MiningProMC @beezle1197 @ospreytriple

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ANSWER CHOICES 20 children and 10 adults Equation 1: a + c = 30 Equation 2: 3a + c = 50 10 children and 20 adults Equation 1: a + c = 30 Equation 2: 3a − c = 50 20 children and 10 adults Equation 1: a + c = 30 Equation 2: 3a − c = 50 10 children and 20 adults Equation 1: a + c = 30 Equation 2: 3a + c = 50

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0total of adults and children was 30 : a + c = 30 $3 per adult, $1 per child....total of $50 : 3a + c = 50 a + c = 30 a = 30  c  now sub 30  c in for a in the other equation 3a + c = 50 3(30  c) + c = 50  distribute through the parenthesis 90  3c + c = 50  subtract 90 from both sides 3c + c = 50  90  simplify 2c =  40  divide both sides by 2 c = 20 a + c = 30 a + 20 = 30 a = 30  20 a = 10 so there are 20 children and 10 adults

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank u, can u do another plz

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No direct answers, please.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How many solutions are there to the given set of equations? Equation C: y = 3x + 7 Equation D: y = 3x + 2 How many solutions are there to the given set of equations? One solution Two solutions Infinitely many solutions No solution

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok...lets do this one together y = 3x + 7......so sub in 3x + 7 for y in the other equation 3x + 7 = 3x + 2 now do you know how to solve for y ??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ooops...I mean for x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.03x + 7 = 3x + 2  subtract 7 from both sides 3x + 7  7 = 3x + 2  7  simplify 3x = 3x  5  now subtract 3x from both sides 3x  3x = 3x  3x  5  simplify 0 = 5 now...is that correct ? Does 0 = 5 ??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no.....0 does not equal 5....therefore, there are no solutions to this problem

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh duh i see now, thank u
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.