$25.50
15% of 30 is 4.5 which if you subtract it'll make $25.50 <span />
It is -12, negative + negative is Negative unless if its with a positive it will cancel out
ex, -12 + 6= -6
Answer:
x=6,y=-11
Step-by-step explanation:
y=-3x+7
x=-2y-16
Substitute the second equation into the first every place you see an x
y=-3(-2y-16)+7
Distribute
y = 6y+48 +7
Combine like terms
y = 6y +55
Minus 6y from each side
y-6y = 6y-6y+55
-5y = 55
Divide by -5
-5y/-5 = 55/-5
y = -11
Now we need to find x
x=-2y-16
x = -2(-11) -16
x =22-16
x = 6
x=6, y= -11
Yes, Theo would drive at a rate of 114 miles and Alex would drive at a rate of 124 miles
