Answer: B “ Each time, t, is associated with exact one car value, y.
Step-by-step explanation:
I just took the pre-test on edge.
Answer:
(x, y) = (3, 5/2)
Step-by-step explanation:
I'll solve by elimination here. If you invert the second equation and add it to the first, 2y and -2y would cancel out.
Now just add those from top to bottom.
Nothing else needs to be done for that part. Now, you can pick either equation and use the known value of x to solve for y.
(x, y) = (3, 5/2)
Answer:
Train B is traveling faster.
Step-by-step explanation:
To find which train is faster, divide the distance the train traveled by the elapsed time for each train:
Train A:
Distance traveled is 12.5 meters.
Elapsed time is 1 second.
12.5 ÷ 1 = 12.5
Train A travels 12.5 meters per second.
Train B:
Distance traveled is 100 meters.
Elapsed time is 4 seconds.
100 ÷ 4 = 25
Train B travels 25 meters per second.
25 is greater than 12.5, so train B travels faster.
30+4X=90 (right angle is 90°)
X=15
4 (15)= 60
30+60= 90 so you know it's right
Answer:
$68.48
Step-by-step explanation:
If I'm reading this right (you're statement is kinda confusing) 88+76+92=256, 256*1.07=273.92, 273.92/4=68.48
