Problema Solution
The income, I, for a kiddie train at an amusement park is directly proportional to the number of tickets sold, n. If the income, I, is $51 when $34 tickets are sold, determine the income when 20 tickets are sold.
I = $_____
Answer provided by our tutors
step1
given information
The income, I, for a kiddie train at an amusement park is directly proportional to the number of tickets sold
so I= K n
where k is constant of proportion
step2
let I1 ANS I2 ARE INCOMES FOR NUMBERS OF TICKETS n1 and n2
than
I1= Kn1 -------------------------------------1
I2= Kn2 ---------------------------------------2
divide 1 by 2 equation we gets
I1/I2= n1/n2
we have given dats in question
I1=$ 51
n1 = $34
n2 = $ 20
I2 = ?
HENCE
51/ I2= 34/ 20
I2 = 51 * 20 /34 = $ 30