The three refers to 3 ten thousands. or 3 x 10,000.
Answer:
C. 5 goes into 100 twenty times, and 1 times 20 is 20
Step-by-step explanation:
Since, we know that when we multiply both numerator and denominator of a fraction by a same number then we obtain an equivalent fraction,
Here, the given fraction,

By the above statement,

Now,


Hence,

Option C is correct.
1 - 5/15 + 3/15
Just use common denominators!
Hope that helped. :)
If you're talking about the second part of the question where it asks you which facts you included in your answer, you can choose any of them and it will be counted right.
Let's write miles over hours
80 / 2 = 200/ x
cross multiply
80x = 400
divide both sides by 80
x = 5
It will take 5 hours to cover 200 miles
Hope this helps :)