The GCF of 27 and 72 is 9 / The 3rd option!
The system of equations to find the cost of one adult ticket, a, and the cost of one child ticket, c are Roy's; 6a+2c=66 Elisa's 5a+4c=62.
<h3>What is a system of equations?</h3>
A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
Let's consider adults tickets be a and child tickets be c
so
Roy's purchase
6a+2c=66------1
Elisa's purchase
5a+4c=62-------2
Hence, the system of equations
6a+2c=66------1
5a+4c=62-------2
solving simultaneously
6a+2c=66
5a+4c=62
Also,
12a+4c=132
-5a+4c=62
7a=70
a=$10
put a=70 in 1
6(10)+2c=66
60+2c=66
2c=66-60
2c=6
c=$3
Learn more about equations here;
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Answer:
Surface Area is 87.6cm squared
Step-by-step explanation:
Answer: #13: Domain = (-∞,∞) Range = (-∞,0]
#14: Domain = (-∞,∞), Range = (-∞,∞)
Step-by-step explanation: The domain is all possible x values for a graph and the range is all possible y values.
