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Help please!!!! Im really stuck.

Help please!!!! Im really stuck.-example-1
User Flov
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1 Answer

2 votes

Answer: 275 adults and 130 children

Explanation:

First, find the value of one variable by rearranging a equation:


a+c=405\\c=405-a

Substitute it into the other equation and solve for a:


12a+5c=3950\\12a+5(405-a)=3950\\12a+2025-5a=3950\\12a-5a=3950-2025\\7a=1925\\a=(1925)/(7) =275

Use the a-value to find b by substituting it into the rearranged equation:


c=405-a=405-275=130

Therefore, the answer would be:


\left \{ {{a=275} \atop {c=130}} \right.

User Abdul Wasae
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