Question

The Jurassic Zoo charges $8 for each adult admission and $2 for each child. The total bill for the 223 people from a school
trip was $854. How many adults and how many children went to the zoo?

Answer 1

Answer:

20 adults 52 children

Step-by-step explanation:

Answer 2

$\text{Make a systems of equations: a = adult and c = child}\\\\a+c=223\\\\8a+2c=854\\\\\text{Solve:}\\\\\text{Let's solve for A:}\\\\-8(a+c=223)\\\\-8a-8c=-1,784\\\\8a+2c=854\\\\-6c=-930\\\\c=155\\\\\boxed{\text{There are 155 children}}\\\\\text{Now, solve for aby plugging in the answer you got to the c variable}\\\\a+155=223\\\\\text{Subtract 155 from both sides}\\\\a=68\\\\\boxed{\text{There are 68 adults}}$