Answer:
c
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
3x - 2 + 2x + 1
5x - 1
You never gave the speed of the blue train.
The path to collision is equal to 1½ circles.
1.5 x 210 meters
= 315 meters
I'm going to arbitrarily guess the speed of the blue train is 15 meters per minute. They are therefore approaching each other at a combined rate of 35 meters per minute.
315 / 35 = 9 minutes
Answer:
9 minutes
9 because 9⁴ gives you that result, you can try on a calculator ;)
Now, if we solve for "h", and thus put the equation in slope-intercept form,
notice what the slope is, and recall that the slope of an equation is just the "average rate of change".