7.5a+3c=663
a+c=113
Write a literal equation for c using the second equation.
c=-a+113
Substitute the value of c into the first equation
7.5a+3(-a+113)= 663
7.5a-3a+339=663
4.5a+339=663
4.5a=324
a=72
Final answer: 72 adult tickets sold
Check by finding the value of c and plugging both values in
(72)+c=113
c=41
7.5(72)+3(41)
663
True
Answer:
whats the question...........
<h2><u>
Answer:</u></h2><h3>6.)

</h3><h3>7.)

</h3><h2 /><h2><u>
Solution Steps:</u></h2>
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<h3>6.) Solve each problem:</h3>
÷ 
÷ 
÷ 
÷ 
- So looking at this most of them equal 0.333333333, which in fraction form is
, so 3 ÷ 8 must be the answer.
<h3 /><h3>7.) Solve each problem: </h3>
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÷ 
<em> - So looking at each problem answer, most of them are 3.125, except for 8 ÷ 25.</em>
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Answer:
Step-by-step explanation:
true