Sonia runs 1/3 of a mile in 4 minutes.

a. if sonia continues at the same speed, how long will it take her to run one mile?

b. draw and label a picture showing why your answer to part (a) makes sense.

Step-by-step explanation:

Find Sonia's unit rate:

1/3 mile       1

= mile/minute

4 min         12

To find how long it will take her to run 1 mile, simply invert the previous answer, obtaining:

    12 minutes

          1 mile

Sonia needs 12 minutes to run 1 mile.

h who knows

step-by-step explanation:

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.