Substitution doesn't work for this, but elimination does.
-6x-8y=-20 +6( x+6y=-6)
-6x-8y=-20 + 6x+36y=-36
-6x and 6x cancel each other, add -8 and 36 to get 28, and -20 and -36 to get -56.
28y=-56
divide by 28 on both sides.
Y= -2
Then substitute y into one of the equations.
x+6(-2)=-6
x-12=-6
x=6
The ordered pair is (6,-2).
x=-4/3y+10/3 and x=-6-6y
She has $18.50 so she needs $39.50.
6.50×3= 19.50
18.50+19.50= 38
5.25×4=21
38+21=59
Maya would have enough money to go on the trip.
Answer:
I think it's 49 I'm sry if I'm wrong hope you luck
Step-by-step explanation:
4m^2+3m-1=0
a=4
b=3
c=-1
input
x= 
x= 
x= 
x= 
x= 
or 
x=-1 or 1/4