3 x^{2} - 15x - 42
(x-7)(x+2)
x-7=0 x+2=0
x=7,-2
Answer:
Step-by-step explanation:
The fraction of all the cookies is equivalent to 1.
If 
of the cookies are chocolate chip, then the remaining cookies is equivalent to
.
The fraction of all the cookies that are peanut butter is
Answer:
0.28
Step-by-step explanation:
0.28*100=28
Answer:
D. X=-3, y=4
Step-by-step explanation:
-2x+3y=18 equation 1
x=-y+1 equation 2
-2(-y+1)+3y=18 replace x value of equation 2 into equation 1
2y-2+3y=18
5y=20
y=4
solve for x by replacing y value into either equation.
x=-y+1
x=-4+1
x=-3
