Bell Ringer – Throw Back Thursday I will not answer any questions about the Bell Ringer. This is from Notes Section 9.3 Multiply or Divide. Express your.

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Presentation transcript:

Bell Ringer – Throw Back Thursday I will not answer any questions about the Bell Ringer. This is from Notes Section 9.3 Multiply or Divide. Express your answer using exponents. 1. 84 · 85 2. (3n)(6n2) 3. 59 ÷ 53 4. x7 ÷ x2

Starting New – Chapter 6 Section 6.1 - Ratios R drive > Key > Feb 9_13 > 2_12__6.1 Ratios File > Save As > P drive > Math > Feb 9_13 > 2_12__6.1 Ratios

Vocabulary Ratio – A comparison of 2 quantities by division

Notes There are 3 different ways to write ratios. All three ways mean the same thing. Use the word “to” Use a colon Use a fraction

Notes Ratios can express part to part, part to whole, or whole to part relationships.

Example 1 Write Ratios in Simplest Form Express the ratio 12 baskets in 18 attempts as a fraction in simplest form. Explain its meaning.

Example 2 Write Ratios in Simplest Form Express the ratio of the life span of a bottlenose dolphin to the life span of a mouse as a ratio in simplest form. Explain its meaning.

Example 3 – Your Turn Write Ratios in Simplest Form Express the ratio 10 roses out of 12 flowers as a fraction in simplest form. Explain its meaning.

Example 4 Write Ratios as Fractions Ten out of every 30 Americans own a portable MP3 player. Express this ratio as a fraction in simplest form. Explain its meaning.

Example 5 Write Ratios as Fractions 15 out of 100 campsites at a campground are reserved for campers with pets. Express this ratio as a fraction in simplest form. Explain its meaning.

Example 6 – Your Turn Write Ratios as Fractions A store found that 25 out of 35 people shopping there were women. Express this ratio as a fraction in simplest form. Explain its meaning.

Notes When writing a ratio involving measurements, both quantities should have the same unit of measure.

Example 7 Write Ratios as Fractions

Example 8 Write Ratios as Fractions Express the ratio 15 inches to 1 foot as a fraction in simplest form.

Example 9 – Your Turn Write Ratios as Fractions Express the ratio 21 inches to 2 yards as a fraction in simplest form.

Conversion Units 3 feet = 1 yard 16 ounces = 1 pound 4 quarts = 1 gallon 12 inches = 1 foot

Homework Section 6.1 #1-23

Homework Section 6.1 #1-23

Homework Section 6.1 #1-23

Homework Section 6.1 #1-23