A zoo train ride costs $5 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who took the ride was 17, and the total money collected was $65. 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?

Question

anonymous · Answer

5 children and 12 adults
Equation 1: a + c = 17
Equation 2: 5a − c = 65 12 children and 5 adults
Equation 1: a + c = 17
Equation 2: 5a + c = 65 12 children and 5 adults
Equation 1: a + c = 17
Equation 2: 5a − c = 65 5 children and 12 adults
Equation 1: a + c = 17
Equation 2: 5a + c = 65

anonymous · Answer

I think b

0_0youscareme · Answer

http://openstudy.com/study#/updates/556872d3e4b0c4e453f8cdf6

anonymous · Answer

so is it b or d

0_0youscareme · Answer

D.

anonymous · Answer

Line A is represented by the equation given below:

 x + y = 4

What is most likely the equation for line B, so that the set of equations has infinitely many solutions?
 4x + 4y = 4 4x + y = 4 2x + 2y = 8 x + y = 8