And he earns the same amount of money for each hour he works. Last week, he worked 40 hours and was paid $612. Which equation Co
1 answer:
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Answer:
Option a) [5.567, 5.633]
Step-by-step explanation:
We are given the following in the question:
Sample mean, = 5.6 feet
Sample size, n = 27
Alpha, α = 0.10
Sample standard deviation, s = 0 .1 feet
90% Confidence interval:
Putting the values, we get,
Option a) [5.567, 5.633]
Answer:
Children ticket cost $30 and adult ticket costs $40.
Step-by-step explanation:
Given that:
x = price of a child ticket
y = price of an adult ticket
According to given statement;
3x+2y=170 Eqn 1
4x+6y=360 Eqn 2
Multiplying Eqn 1 by 3
3(3x+2y=170)
9x+6y=510 Eqn 3
Subtracting Eqn 2 from Eqn 3
(9x+6y)-(4x+6y)=510-360
9x+6y-4x-6y=150
5x=150
Dividing both sides by 5
Putting x=30 in Eqn 1
3(30)+2y=170
90+2y=170
2y = 170-90
2y = 80
Dividing both sides by 2
Hence,
Children ticket cost $30 and adult ticket costs $40.