SOLUTION: The jurrascc zoo charges 10 for each adult and 7 for each child. The total bill for the 100 people was 790. How many adults and how many children are there

Question 1049811: The jurrascc zoo charges 10 for each adult and 7 for each child. The total bill for the 100 people was 790. How many adults and how many children are there
Answer by advanced_Learner(501) (Show Source): You can put this solution on YOUR website!
10a+7c=790
a+c=100

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION

Solve:
We'll use substitution. After moving 7*c to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that c=70. Since , a=30.

Answer: .

RELATED QUESTIONS
The Jurassic zoo charges $9 for each adult admission and $5 for each child. The total... (answered by TimothyLamb)

The Jurassic zoo charges $14 for each adult admission and $8 for each child. The total... (answered by josgarithmetic)

The Jurassic Zoo charges $6 for each adult admission and $4 for each child. The total... (answered by josmiceli)

The Jurassic Zoo charges $28.00 for each adult admission and $12.00 for each child. The... (answered by jim_thompson5910)

The Jurassic zoo charges $13 for each adult admission and $8 for each child. The total... (answered by josgarithmetic)

The Jurassic Zoo charges $11 for adult admission and $9 for each child. the total bill... (answered by jim_thompson5910)

the jurassic Zoo charges $8 for each adult and $4 for each child. Totabill for the 201... (answered by drj)

The zoo charges $14 for each adult ticket and $3 for each child. The total bill for 196... (answered by stanbon)

The Jurassic zoo charges $6 for each adult admission and $4 for each child. The total... (answered by josgarithmetic)