The expression 7 + 2(x – 3) + 5x is simplified correctly in the correct order. Which of the steps has an incorrect justification
?
step a
step c
step d
step b
step a
step c
step d
step b
2 answers:
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Answer:
The price of an adult's ticket is $18.5 and price of a child's ticket is $11.
Step-by-step explanation:
We are given the following in the question:
Let x dollars be the cost of an adult's ticket and y dollars be the cost of a child's ticket.
The cost of three adults and two children tickets is $77.50
Thus, we can write the equation:
The cost of two adults and three children tickets is $70.00
Thus, we can write the equation:
Solving the two equations, we get
Thus, the price of an adult's ticket is $18.5 and price of a child's ticket is $11.