Answer:
The range is the difference between the biggest and smaller values of a set. The median is the middle value of a set. So we cannot say were the lowest score was found, comparing the median and ranges, because it could be that some repeated value very low or high is biasing the median, we could do it with the mean perhaps. So the proposal is false.
Answer:

Step-by-step explanation:

Use distributive property.







At three hours as car a has already traveled a hour which making it three therefore making car b equal 2 hours or in a math equation 40×3=car b and 60×2=car a
Answer:
Step-by-step explanation:
From the given table,
To prepare a mixture of a paint, two paints of different shades have been added in the same ratio,
Since, 2 cups of blue paint are mixed with 10 cups of yellow paint
Therefore, ratio in which these shades have been added = 
= 
= 
= 5 : 1
For 1 cup of blue paint number of cups of yellow paint required,

x = 5 cups
For 3 cup of blue paint number of cups of yellow paint required,

x = 15 cups
Cups of blue paint Cups of yellow paint
2 10
1 5
3 15