100 kilometers you solve with a proportion 2/20=10/x
2x=200 so x=100
Answer:

Step-by-step explanation:
We have been given that in the after school Dena, Shawn, and Amanda knit scarfs that are the same size with yellow, white, and blue yarn. Denas scarf is 2/5 yellow, Shawn's scarf is 3/5 , and Amanda's scarf is 3/4 yellow.
To make Amanda's argument true, let us compare each fraction by making a common denominator.
We can see that least common denominator of each fraction would be 20.



Since
, therefore, Amanda's scarf has the most yellow.
Answer:
She caught 10 rabbits
Step-by-step explanation:
Given
Represent Rabbits with R; Squirrels with S and Deer with D



Required
Determine the value of R

Solve for R


Recall that 
Substitute 3D for S


Hence;
<em>She caught 10 rabbits</em>
Answer:
(B) A selected group of participants that is representative of a larger population
Step-by-step explanation:
A sample statistic is a piece of information that you get from a fraction of the population. This information is representative of a larger population.
For example, someone wants to conduct a survey about the most popular NFL team in Syracuse, NY, if it is the Buffalo Bills or the New York Giants. This person is not going to ask each person for whom they cheer. They are going to collect data from a fraction of the population and this data will be expanded to include the entire population.
So, the correct answer is:
(B) A selected group of participants that is representative of a larger population
10 pounds of sugar for 5 litres of cream.