Sandy bought 12 7/8 pounds of peaches to make jam. She and her mother ate 0.75 of a pound of the peaches before making the jam. They used 9 3/8 pounds of the peaches to make the jam. How many pounds of peaches were left over? A. 3 1/4
B. 3
C. 2 3/4
D. 2 1/4

C

Step-by-step explanation:

initial amount: 12 7/8 lbs

ate: 0.75 lbs= 3/4 lbs = 6/8 lbs

used: 9 3/8 lbs

remainder: 12 7/8 - 9 3/8 - 6/8

                = 3  1/8 - 3/8

                =2 6/8 = 2 3/4 = C

therefore C is the answer

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

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.