It costs $95 for 20 students to visit an aquarium. How much does it cost for 162 students? It costs $

It would cost $769.50 for 162 students because if you take 20 divided by 20 to get one student then you have to divide the money by 20 so you would get $4.75 per student. Then you have to take 4.75 times 162 because that is how many students they would pay for. So your answer would be $769.50 for 162 students to go to the aquarium

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.