X^2-2x=0
x(x-2)=0
x=0
x-2=0. x=2
0 and 2
Answer:
the first one
Step-by-step explanation:
plz give brainliest
It is empty a gallon every two and a half minutes so 2 1/2x x=gallons of water
it will take 12 1/2 minutes to completely empty since it takes 2 1/2 minutes per gallon.
the tank was full 7 1/2 minutes before Jada arrived. 10-7= 3 so it emptied 3 gallons before Jada arrived. It takes 2 1/2 mins for a gallon to empty so 2 1/2 times 3 equals 7 1/2 mins
8x + 7y = -15 (1st)
-7x - 9y = -7 (2nd)
multiply (1st) by 7 and (2nd) by 8
56x + 49y = -105 (multiply 7)
-56x - 72y = -56 (multiply 8)
--------------------------------------------add
-23y = -161
y = 7
8x + 7y = -15
8x + 7(7) = -15
8x + 49 = -15
8x = -64
x = -8
answer
x = -8 and y = 7
Answer:
(-5,-9)
Step-by-step explanation:
you need to check which line the dot ison
