A total of 399 tickets were sold for the school play. They were either adult tickets or student tickets. The number of students
1 answer:
133 adult tickets were sold.
Step-by-step explanation:
Given,
Total tickets sold for school play = 399
Let,
x represent the number of children tickets sold.
y represent the number of adult tickets sold.
According to given statement;
x+y=399 Eqn 1
x = 2y Eqn 2
Putting value of x from Eqn 2 in Eqn 1
Dividing both sides by 3
133 adult tickets were sold.
Keywords: linear equation, substitution method
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A Laplace expansion along the first row gives
Answer:
My total savings was = $58.33
Step-by-step explanation:
Given:
12% of my savings was = $7.00
To find my total savings.
Solution:
Let the total savings in dollars be =
12% of the total savings will be =
12% of my savings was = $7.00
So, we have:
Solving for to get my total savings.
Dividing both sides by 0.12
∴
Thus, my total savings was = $58.33