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12 June, 17:15

Last year my family decided to put on a play It was A Great success. 200 people attended and we earned a total of 800. If adults tickets cost 4 and children coat 2 dollar, how many adults were there

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  1. 12 June, 20:23
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    200 adults

    Step-by-step explanation:

    We can set-up a system of equations to find the number of adults. We know children and adults attended. We will let c be the number of children and a be the number of adults. Since 200 people attended, then c+a=200.

    We also know they made $800 and adult tickets cost $4 and child tickets cost $2. We can write 2c+4a=800.

    We will solve by substituting one equation into the other. We start by solving the first equation for c. c+a=200 becomes c=200-a.

    Now we substitute c=200-a into 2c+4a=800. Simplify and isolate the variable a.

    2 (200-a) + 4a=800 400-2a+4a=800 400+2a=800 400-400+2a=800-400 2a=400 a=200

    This means that 200 adults attended and 0 children attended.
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