Basically you need to find the answer choice that is rational. That way the sum will also be rational.
√7 is irrational as well as π and 0.5050050005...
2/4 is the only rational option.
answer: D
Answer:
The man traveled 20km by train.
Step-by-step explanation:
If x is the distance he traveled by train, you can write this equation to represent the situation:

Then, you can simply solve for x:

The man traveled 20km by train.

Answer:
Step-by-step explanation:
52-35=17
17/0.5=34
Answer:
33
Step-by-step explanation:
90-57=?
57+?=90
57+33=90
Answer:
-6/3x
Step-by-step explanation:
gradient = slope
Rise/run = -6/3x