Mathematics: Alyssa is selling tickets for school musical student tickets cost $4 and adult tickets are $7 once the musical begins she determines that she sold 373 tickets and she has$2209 In the cash box how many student tickets and adult tickets did she sell

Alyssa is selling tickets for school musical

micky956

06.05.2021

Adult tickets cost $20, child tickets cost $15

Step-by-step explanation:

I'm going to assume that we have to say how much the tickets cost

x- cost of an adult ticket

y- cost of a child ticket

$\left \{ {{10x+3y=245} \atop {5x+y=115}} \right.$

$\left \{ {{10x+3y=245} \atop {y=115-5x}} \right.$

10x+3(115-5x)=245

10x+345-15x=245

-5x=-100

x=20

y=115-5*20=15

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Juliette9525

26.11.2021

simply multiply

$\frac{1}{20} \times 5 = x \\ \frac{5}{20} = x \\ \frac{1}{4} = x$

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