20 - 2n
Difference means taking away
Two times a number means whatever n is it is multiples by 2 and subtracted from 20
Answer:
I would say B
Step-by-step explanation:
Answer:
Step-by-step explanation:
Well believe it or not, that is not a simple question. Just look at what you left us to define. Your talking (for example) about a square and wondering what the vertex of B is called (other than a vertex.)
I think vertex is the only thing you can call B. But then there's a problem. What do you call the points on a segment? ___________? There are endpoints, but what's between those endpoints? I think you would just give them letter names and call them points. A point is dimensionless and there an infinite number of them in a segment.
Phew!!!
For this, we use the given info plus a bit of multiplying and subtraction
part 1)
we know that she's 25 y/m
so 5 minutes simply means 25 × 5

now we simply subtract this from 1000 (the original distance)

part 2)
the total time taken is even easier to find
all we have to do is divide 1000 by 25