Aim: How can we determine if two ratios are equivalent? Problem 1: Mike mixes gallons of red, blue and Problem 2 A farmer used 9 square yards of grass to white paint together in the ratio of 8:6:7. If Mike buys feed 4 horses. How many horses could a farmer have 15 gallons of red paint, how many gallons of blue and if there was 420 square yards of grass? white paint would Mike need? Problem 3: It takes 17 minutes to ride miles on a A Problem 4: bag of sand covers 470 square bike. How many miles can Peter ride in 1 hour? feet. How many bags would be needed to cover 1070 square feet? Problem 5 Hotel guests have 4 activities to chose from. The table below shows the number of people who have signed up for each activity. If 90 guests are expected to sign up for one of the four activities. Could the hotel expect 20 guests to sign up for snorkeling? Justify your answer Problem 6: Amelia is baking brownies for her bake sale. She adds cups of flour, cocoa and sugar to the mix in the ratio of 10:5:2. She needs to make the recipe smaller but use the same ratio. If she uses of a cup of cocoa how much flour and sugar will she need? Justify your answer using mathematical terminology. Warm up: Reduce the ratio to its lowest form. 42:54 Homework: NOTES: Proportion: two equivalent fractions set _________ to each other.
Problem 1: Mike mixes gallons of red, blue and white paint together in the ratio of 8:6:7. If Mike buys 15 gallons of red paint, how many gallons of blue and white paint would Mike need? Problem 2 A farmer used 9 square yards of grass to feed 4 horses. How many horses could a farmer have if there was 420 square yards of grass? Problem 3: It takes 17 minutes to ride miles on a bike. How many miles can Peter ride in 1 hour? Problem 4: A bag of sand covers 470 square feet. How many bags would be needed to cover 1070 square feet? Problem 5 Hotel guests have 4 activities to chose from. The table below shows the number of people who have signed up for each activity. If 90 guests are expected to sign up for one of the four activities. Could the hotel expect 20 guests to sign up for snorkeling? Justify your answer Problem 6: Amelia is baking brownies for her bake sale. She adds cups of flour, cocoa and sugar to the mix in the ratio of 10:5:2. She needs to make the recipe smaller but use the same ratio. If she uses of a cup of cocoa how much flour and sugar will she need? Justify your answer using mathematical terminology. Aim: How can we determine if two ratios are equivalent? Warm up: Reduce the ratio to its lowest form. 42:54 Homework: NOTES: Proportion: two equivalent fractions set _________ to each other.
unit_2-_classwork_packet.docx