Question

comments

Answer 1

a = adult c=children

3a + 4c = 132
2a + 3c = 94

solve by substitution

Answer 2

well if you subtract the equations you find that 1 adult and 1 child cost $38


then looking at the 1st equation

3adults + 3 chidren + 1 child = 132

or

3(adult + children) + child = 132

now use the fact 1 adult + 1 child = 38

3(38) + child = 132


solve for the child's price...

Answer 3

why 3(38)?

Answer 4

well the 2 equations are and subtracting then tell you

3 adults and 4 children = 132
- 2 adults and 3 chidren = 94
---------------------------------
1 adult + 1 child = 38

so looking the the 1st equation

3 adults + 3 children + 1 child = 132

so

3( 1adult + 1child) + child = 132

you know from the top that 1 adult + 1 child = 38

so substituting you get

3*(38) + 1 child = 132

now just solve for the 1 child