The train went 300 miles in 3 hours; the ___ was 100 miles per hour.
A- Origin
B- Unit rate
C - Coordinate plain
PLEASE ANSWER FAST
LOTS OF POINTS

Unit rate so, B

Step-by-step explanation:

The unit rate is basically a ratio between two different units

So when we divide 300 by 3, 300/3, we get 100 and that is the unit rate.

It's not the origin because the origin is the starting point and the coordinate plain, is well, a coordinate plain!  

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

a and c

for infinitely many solutions we require both left and right sides to be equal

distribute and simplify

a

14 - 8x = 20 - 8x - 6 = 14 - 8x ← both sides equal so infinite solutions

b

6x - 54 = 6x - 54 + x = 7x - 54 ← not equal

c

4x + 16 = 4x + 10 + 6 = 4x + 16 ← both sides equal so infinite solutions

d

5x - 40 + 10 = 5x + 10

5x - 30 = 5x + 10 ← not equal