The lee family and the davis family are seeing a movie together in the theater. at the concession stand, mr. lee paid $36 for 4 popcorns and 4 drinks that his family will share. mrs. davis bought 4 popcorn and 1 drink and paid $24. how much did each item cost ? let x= price of popcorn and y= price of drinks. explain the process, using complete sentences, how to solve for the price of popcorn and the price of a drink.

Step-by-step explanation:

The Lee family and the Davis family are seeing a movie together in the theater. At the concession stand, Mr. Lee paid $36 for 4 popcorns and 4 drinks that his family will share. Mrs. Davis bought 4 popcorn and 1 drink and paid $24. How much did each item cost ? Let x= price of popcorn and y= price of drinks. Explain the process, using complete sentences, how to solve for the price of popcorn and the price of a drink.

y=mx+b

step-by-step explanation:

m slope, b y-intercept

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.