You do!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
12.63 km/hr
Step-by-step explanation:
Given the distance=240km
At 12 km/hr it will take =240/12 =20
time for Express train = 20-1=19
speed=240/19=12.63...km/hr
The answer to 9 is 87.
The answer to 10 is x=91, y=89, and z=31
Mark as branliest plz
2x + 4y - 2x - 3y = 22 - 50
y = -28
substitute into the 1st equation to find x
