2.1 – Ratios & Rates Textbook pg. 116 Objective:

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Presentation transcript:

2.1 – Ratios & Rates Textbook pg. 116 Objective: The student will find ratios and unit rates in order to prepare for proportions and conversions.

Ratio: comparison of two things 3 to 4 3:4 3 4 The schools has 210 male students, 300 female students, 12 male teachers, and 10 female teachers. Write the ratio: Male students to female students ________ Female students to male students ________ Students to teachers ________ Teachers to students ________ Females to males ________ Male teachers to male students ________

Rate: ratio of amounts with different units 34 mi $30 4 pages 2 gal 3 hours 20 min Unit Rate: rate with a denominator of 1 (amount per 1 unit) 17 mi $10 0.2 pages 1 gal 1 hours 1 min

You are shopping for t-shirts. Which store offers the best deal? Store A Store B Store C $25 for 2 shirts $45 for 4 shirts $30 for 3 shirts If Store B lowers it’s price to $42, does that change your answer?

You are debating whether to buy groceries in bulk or not You are debating whether to buy groceries in bulk or not. Determine which choice is best. Fry’s Costco 48 oz for $1.77 160 oz for $5.48 3 12-packs for 1 35-pack for $8.37 $10.88 32 oz for $2.99 250 oz for $15.82

Name Date Period 2.1 HW – pg. 119, #9-10