13. a) Use a calculator to convert 1/3 to a decimal. How could 1/3% be shown using a hundred grid?
1/3 as a decimal would be 0.33333333...
This is how it would be shown on a graph:
b) Why are percents involving repeating decimals sometimes difficult to show on a hundred grid?
It is hard to show repeating decimals on graphs, because you would have to divide a single block into thousands or more!
12. A 250-mL glass of milk contains 30% of the recommended daily value of calcium. Use a hundred grid to show how many glasses of milk you would need to drink to get 100% of the daily value of calcium.
Each GREEN area represents a glass of milk containing 30% of the recommended daily value of calcium. So if you drink 3 glasses, you get 90% of the RDVC. So the BLUE area at the bottom represents 1/3 of a 250mL glass. Which would be 10%, and give you your full 100% of RDVC!!
What percent is represented by each diagram if a completely shaded grid represents 100%
a) 0.3% or 3/10%
b)125.5% or 125 1/2
1. Use hundred grids and words to describe the similarities and differences between a percent less than 1%, a percent between 1% and 100%, and a percent greater than 100%.
I couldn't find the answer