Answer:
Train A = 299 tons Train B = 50 tons
Step-by-step explanation:
Train A = x
Train B = y
x+y = 349
x= y +249
Plug in one equation into another
y+249+y= 349
Simplify
2y+249=349
Subtract 249 from both sides
2y=100
Divide both sides by 2
y=50
Plug it into the x equation to solve for x
x+50=349
-50 from both sides
x=299
$45+$18+$26-$21-$93
45+18=63
63+18=81
81+26=107
107-21=86
86-93=-7
Answer: x = 5, x = -5 If you need more....
x = 
x = 
Answer:
Its the graph at the top left.
Step-by-step explanation:
Take the graph of f(x) = 0.25^x:
when x = 0 , f(x) = 1 so it will pass through the point (0,1). Also as x increases f(x) will decrease because the base 0.25 is < 1. So the graph will decrease to the right.
The + 5 in the function moves the whole graph up 5 units so the graph will pass through the point (0, 6).
