Answer:
Train A weighs 252 tons and Train B weighs 13 tons
Step-by-step explanation:
Let "A" represent the weight of Train A and "B" represent the weight of train B.
We can use this to set up a system of equations:
A+B=265
A-B=239
We can solve using elimination. Let's subtract the second equation from the first to cancel out A.
2B=26
Divide both sides by 2
B=13
Plug 63 back in for B in any of the two equations:
A+13=265
Subtract 13 from both sides
A=252
Train A weighs 252 tons and Train B weighs 13 tons
Answer:
Step-by-step explanation:
The gradient or slope of a line is defined as
m=(y2-y1)/(x2-x1), we have points (-8,6) and (3,8)
m=(8-6)/(3-(-8))
m=2/11
