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Ratios, Rates

CHAPTER

4 and Proportions

CHAPTER
4

What will you learn?
• Ratios
• Rates
• Proportions
• Ratios, Rates and Proportions
• Relationship between Ratios, Rates and
Proportions, with Percentages, Fractions
and Decimals

Why study this chapter?
Ratios, rates and
proportions are involved
in the fields that require
the concept of comparisons.
An astronomer measures the
distance in the solar system by
comparing each distance in the
solar system with the distance from The Hippocampus kuda is a type of seahorse
the Earth to the Sun. A nurse uses found in river estuaries. These seahorses are
the concept of rates when taking a facing extinction and must be conserved
patient’s pulse. Discuss other fields and appreciated. To estimate the seahorse
which involve the concept population at a certain habitat, marine
of comparisons. biologists will tag the first sample of the
seahorses and then release them back to the
original sites where they were collected from.

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Chapter 4
Chapter 4

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