If a grocer mixed 3 lbs of candy costing $1.7 per pound and 5 lbs of candy costing 90 cents per pound, what should the price of the mixture be?

$9.6

Step-by-step explanation:

The computation of the price of the mixture is shown below:

The price of candy is

= 3 lbs × $1.7 per pound

= $5.1

And for other the price is

= 5 × 0.90

= $4.5

So, the total price of the mixture be

= $5.1 + $4.5

=  $9.6

the answer is c. 23/3

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.