Answer:
x=-2.5,9
Step-by-step explanation:
Set them equal to each other to say 2x^2-9x=4x+45. Get them all on one side to get 2x^2-13x-45. Factor that out to get (x+2.5)(x-9). Set that equal to 0 to get x=-2.5,9
I got the same answer as you. Try to ask your teacher about it since it’s a math problem online or something.
The answer is 19. You have to do 1/4 x 76/1 which is basically 76 divided by 4, which gives you 19.
0,0 1,3 . 2,6 . 3,9 where x is the number of pages and y is the number of minutes
Answer: x=-1 y=1
Step-by-step explanation:
solve y in 3+2x-y=0
y=3+2x
sub y=3+2x into -3 -7y=10x
-14x- 24= 10x
solve x in -14x-24=10x
x= -1
sub x= -1 into y =3+2x
y=1
so therefore x= -1 and y=1
