We can solve this using substitution.
because x-y=2.5
x=y+2.5
Now substitute x into other equation.
2(y+2.5)^2-2y=125
2y^2+10y+12.5-2y=125
2y^2+8y-112.5=0
Now comes the ugly part
y=-4+-sqrt(16+900)
y=-4+-sqrt916
y=-4+-2sqrt229
x=-1.5+-2sqrt229
Its a 2 hour difference between both of those speed limits. 13 hours for the old speed limit, and 11 for the current speed limit. Hope i could help!
This is how you do it !!!
Answer:
1/5 cup of grapes for each cup of apples
Step-by-step explanation:
Divide: 3 divided by 15=0.2
0.2 as a fraction is 2/10
2/10 simplified=1/5
(I was gonna put picture of my work, but I'm too lazy, lol)
Hope this helped!! :)
Stay safe and have a wonderful day/night!!!!!
Brainliest?!?!
