Terry takes 7/8 hour to do one homework assignment. His brother takes 1/3 of the time he takes. How long will his brother take t
2 answers:
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One adult ticket costs £11 and one child ticket costs £8.5
Step-by-step explanation:
Let,
Adult ticket = a
Child ticket = c
According to given statement;
3a+4c=67 Eqn 1
5a+6c=106 Eqn 2
Multiplying Eqn 1 by 5;
Multiplying Eqn 2 by 3;
Subtracting Eqn 4 from Eqn 3
Dividing both sides by 2
Putting c=8.5 in Eqn 1
Dividing both sides by 3;
One adult ticket costs £11 and one child ticket costs £8.5
Keywords: Linear equation, subtraction
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