Students sold 275 tickets for a fundraiser at school. Some tickets are for children and cost $3 while the rest are adult tickets cost $5. If the total value of all tickets sold was $1025, how many tickets were sold?

We are given the price if each ticket, the amount raised, and how many tickets that the STUDENTS sold. So we know that Children tickets cost $3 and adult tickets cost $5, and we also know that they raised $1025. If the students sold 275 tickets, we can assume that these tickets sold by the students where sold TO other students, meaning that we would take 275x3=825 and then use that for 1025-825=200 then use that for 200/5=40 so in total, 40 adult tickets where sold and 275 children tickets where sold. 275+40=315 tickets sold

the formula for converting absorbance to transmittance goes as:

a = log (1/t)  a = 2 - log(%t)  10^a = 1/t  t = 10^-a  %t = 100(10^-a)

 

so at the given value of a,   a = 1.5

%t = 100(10^-1.5)

%t = 3.16%