Answer:
<em></em><em> and </em>
<em></em>
<em></em>
Step-by-step explanation:
Given
Options A to D
Required
Determine the equivalent pair
To do this, we solve each options one after the other.
and
Open bracket
and
and
<em>The above pairs are not equivalent</em>
and
Open bracket
and
and
and
<em>The above pairs are not equivalent</em>
<em></em>
<em></em><em></em>
<em></em><em> and </em>
<em></em>
Collect Like Terms
and
and
<em>The above pairs are equivalent</em>
48 adult tickets and 24 children tickets were sold.
Step-by-step explanation:
Given,
Cost of one adult ticket = $8
Cost of one child ticket = $3
Total worth of sold tickets = $456
Let,
Number of adult tickets sold = x
Number of child ticket sold = y
According to given statement;
8x+3y=456 Eqn 1
x = 2y Eqn 2
Putting value of x from Eqn 1 in Eqn 2
Dividing both sides by 19
Putting y=24 in Eqn 2
48 adult tickets and 24 children tickets were sold.
Keywords: linear equation, substitution method
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