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Big Ideas Math: Modeling Real Life, Grade 6

BI

Big Ideas Math: Modeling Real Life, Grade 6 View details

5. The Coordinate Plane

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Exercise 5 Page 374

Count the number of ducks and swans.

C

Practice makes perfect

There are many different ways to compare amounts or quantities. A ratio is a comparison of two quantities by division. For example, the ratio of a to b can be written in two different ways. a/b or a: b We want to find the ratio of ducks to swans. Let's start by counting the number of ducks and swans in the given figure.

Ducks:& 5 Swans:& 4 Now we can write the fraction that represents desired ratio. We will write the number of ducks in the numerator and the number of swans in the denominator. l ducks→ swans→ 5/4 The greatest common factor of 5 and 4 is 1. This means that the fraction cannot be simplified. The ratio is 54, 5 to 4, or 5:4. This corresponds to option C.

Subchapter links

Try It p.370-372

Self-Assessment for Concepts & Skills p.372

Self-Assessment for Problem Solving p.373

Review & Refresh p.374

Concepts, Skills, & Problem Solving p.374-376