5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes points scored in 4 games; 48 points scored in 8 games words in 3 minutes;160 words in 5 minutes 3. 5 computers for 15 students; 20 computers for 60 students out of 28 students; 24 out of 56 students.

5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes points scored in 4 games; 48 points scored in 8 games.

5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes points scored in 4 games; 48 points scored in 8 games. 16 points ? 48 points 4 games = 8 games 16 x 8 = x 48 = 192 Since 108 ≠ 192, the are not equivalent.

5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes words in 3 minutes;160 words in 5 minutes.

5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes words in 3 minutes;160 words in 5 minutes. 96 words ? 160 words 3 minutes = 5 minutes 96 x 5 = x 160 = 480 Since 480=480, the are equivalent.

5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes computers for 15 students; 20 computers for 60 students.

5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes computers for 15 students; 20 computers for 60 students. 5 computers ? 20 computers 15 students = 60 students 5 x 60 = x 20 = 300 Since 300 = 300, the are equivalent.

5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes out of 28 students; 24 out of 56 students.

5 Minute Check Determine if each pair of rates or ratios are equivalent. Complete in your notes out of 28 students; 24 out of 56 students. 16 ? = x 56 = x 24 = 672 Since 896 ≠ 672, the are not equivalent.

Inquiry Lab Turn to page 67 in your text

Inquiry Lab

Work with a partner to complete page 69 and 70. You have 15 minutes.

Friday, Sept 11 Lesson 1.7 Rate and Ratio Problems

Objective: To solve rate and ratio problems.

Rate and Ratio Problems You can use bar diagrams, rate or ratio tables, or proportions to solve rate and ratio problems.

Rate and Ratio Problems

Method 1 Make a rate table. A rate table is the same as a ratio table.

Rate and Ratio Problems Like Gel2 Total3150

Rate and Ratio Problems Like Gel2 Total3150 x ?

Rate and Ratio Problems Like Gel2 Total3150 x 50

Rate and Ratio Problems Like Gel2 Total3150 x 50

Rate and Ratio Problems Like Gel2 100 Total3150 x 50

Rate and Ratio Problems Method 2 Set up a proportion. Rule – When setting up a proportion, always include units.

Rate and Ratio Problems Rule – When setting up a proportion, always include units. In the above problem, what are the units?

Rate and Ratio Problems ? gel ? gel ? total = ? total

Rate and Ratio Problems 2 gel ? gel 3 total = 150 total

Rate and Ratio Problems 2 gel ? gel 3 total = 150 total 2 x 150 = 300 ÷ 3 = students would prefer gel toothpaste

Rate and Ratio Problems What are the units?

Rate and Ratio Problems ? Lucas texts ? Lucas texts ? Sister texts = ? Sister texts

Rate and Ratio Problems 3 Lucas texts 18 Lucas texts 4 Sister texts = ? Sister texts What’s next?

Rate and Ratio Problems 3 Lucas texts 18 Lucas texts 4 Sister texts = ? Sister texts 4 x 18 = 72 ÷ 3 = 24 His sister sent 24 texts.

Rate and Ratio Problems Do this on your own.

Rate and Ratio Problems 120 miles ? miles 3 hours = 5 hours 120 x 5 = 600 ÷ 3 = 200 He drove 200 miles in 5 hours.

Rate and Ratio Problems Do this on your own.

Rate and Ratio Problems 3 science ? science 20 total = 400 total 3 x 400 = 1200 ÷ 20 = out of 400 students would choose science.

Rate and Ratio Problems A Clydesdale drinks 120 gallons of water every 6 days. At this rate, how many gallons of water does a Clydesdale drink in 8 days? Do this on your own.

Rate and Ratio Problems A Clydesdale drinks 120 gallons of water every 6 days. At this rate, how many gallons of water does a Clydesdale drink in 8 days? 120 gallons ? gallons 6 days = 8 days 120 x 8 = 960 ÷ 6 = 160 They would 160 gallons in 8 days.

Rate and Ratio Problems Out of 20 students surveyed, 13 have a dog. Based on these results, predict how many of the 300 students in the school have a dog. Do this on your own.

Rate and Ratio Problems Out of 20 students surveyed, 13 have a dog. Based on these results, predict how many of the 300 students in the school have a dog. 13 dog ? dog 20 total = 300 total 13 x 300 = 3900 ÷ 20 = would have dogs.

Rate and Ratio Problems The Miller’s drove 105 miles on 4 gallons of gas. At this rate, how many miles can they drive on 6 gallons of gas? Do this on your own.

Rate and Ratio Problems The Miller’s drove 105 miles on 4 gallons of gas. At this rate, how many miles can they drive on 6 gallons of gas? 105 miles ? miles 4 gallons = 6 gallons 105 x 6 = 630 ÷ 4 = They would travel miles on 6 gallons.

Rate and Ratio Problems

Ratio and Ratio Problems Use the ratio table to determine how many people 13 subs would serve. Explain.

Ratio and Ratio Problems Use the ratio table to determine how many people 13 subs would serve. Explain. She forgot the units. 12 students ? teachers 1 teacher = 276 students

Ratio and Ratio Problems Use the ratio table to determine how many people 13 subs would serve. Explain. She forgot the units. 12 students 276 students 1 teacher = ? teachers

Ratio and Ratio Problems Use the ratio table to determine how many people 13 subs would serve. Explain. She forgot the units. 12 students 276 students 1 teacher = ? teachers 1 x 276 ÷ 12 = 23 teachers

Rate and Ratio Problems Complete #1-4, page 74 and #1-7 page 75. Raise hand when complete. Agenda Notes No Homework – Chapter 1 Test - Tuesday, Sept 14 Accum Rev 1 Due Tuesday, Sept 14