Answer:
it's (-10,1)
Step-by-step explanation:
simplify then separate equations and last solve.
-10 and 1
x2+9x -10 = 0
x2-x + 10x - 10 = 0
x(x-1) + 10(x-1) = 0
x+10=0
x-1=. 0
so
x= -10
or x = 1
30 mph
y = 3x + 21 that's the answer
70 mph
(140 miles) / (2 hours) = 70 mph
2016
