anonymous
  • anonymous
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?
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@joeycoulter76 @JoannaBlackwelder @MiningProMC @beezle1197 @ospreytriple
anonymous
  • anonymous
ANSWER 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
texaschic101
  • texaschic101
total 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

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
so a or c?
texaschic101
  • texaschic101
A
anonymous
  • anonymous
thank u, can u do another plz
texaschic101
  • texaschic101
what ya got ?
anonymous
  • anonymous
No direct answers, please.
anonymous
  • anonymous
How 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
texaschic101
  • texaschic101
ok...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
  • anonymous
im not super sure
texaschic101
  • texaschic101
ooops...I mean for x
texaschic101
  • texaschic101
3x + 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
  • anonymous
yes?
texaschic101
  • texaschic101
no.....0 does not equal -5....therefore, there are no solutions to this problem
anonymous
  • anonymous
ohh duh i see now, thank u
texaschic101
  • texaschic101
sure thing :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.