Maria and farida has 250 beads altogether. after maria used 18 beads to make a bracelet and farida gave away 2/5 of her beads, they have the same number of beads left. how many beads did maria have at first?

Maria had 105 beads

Step-by-step explanation:

Let x the number of beads Maria had

Let y the number of beads Farida had

We know because of the problem that

x + y = 250

x -18  = 3/5* y

x -3/5*y = 18

We solve this system of equation with a graphing tool

(intersection of both lines)

Answer

x = 105

y = 145

after simplifying it i got: -36.25 as my answer. hope that !

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.