Ratios And Rates Worksheet - Chapter 3 Page 25
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383.5
Communicate about Ratios
and Rates
YOU WILL NEED
•
a calculator
Explain your thinking when solving ratio and rate problems.
LEARN ABOUT
the Math
Nikita asked Misa to check her explanation to this problem.
A computer downloads a 1577 KB file in 10.455 s. How long will
it take to download a 657 KB file? Explain.
Nikita’s Explanation
Misa’s Questions
Why did you divide 1577 by 10.455?
1577 ÷ 10.455 = 150.8369201
Why did you divide again?
657 ÷ 150.84 = 4.355608692
Where are the units for the numbers?
Why did you use 150.84 when you divided?
It will take 4.36 s to download the file.
Why did you say 4.36 s and not 4.356 s?
How can Nikita improve her explanation?
How can you answer Misa’s questions to improve Nikita’s
A.
explanation?
What other questions could Misa have asked?
B.
126
Chapter 3
NEL
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