Amelia is ordering a balloon bouquet. She can choose any combination of 10-inch balloons and 8-inch balloons for her bouquet, and she does not want to spend more than $30. If the 10-inch balloons cost $4 each dollars and the 8-inch balloons cost $2 each, which inequality represents all possible combinations of x 10-inch balloons and y 8-inch balloons?

4x + 2y <= 30

ignore this text need to reach char minimum

41*67/2=1373.5

step-by-step explanation:

i just used a calculator

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.