2. A B C A comparison of two values that are measured using different units is known as a ______________ rate ratio proportion End Review I NEED HELP!

3. Great Job!!!! End Review Next Question

4. Try Again Back To Question 1 HERE IS A HINT: HERE IS A HINT: look back at your notes, or on the homework page called, “Rates vs. Ratios” End Review

5. A B C Which of the comparisons below is a ratio? boys to girls basketballs per student cupcakes per teacher End Review I NEED HELP!

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7. Try Again HERE IS A HINT: HERE IS A HINT: besides the mathematical difference between rates and ratios (look at the units of measurement) we also learned a trick about the words “to” and “per” Back To Question 2 End Review

8. A B C Which statement about similar figures below is false? End Review All triangles are similar to each other Their corresponding angles are congruent Their corresponding sides are proportional I NEED HELP!

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10. Try Again Back To Question 3 HERE IS A HINT: HERE IS A HINT: Would an isosceles triangle and a right triangle be similar? End Review

11. A B C Would a large square and a small square have corresponding sides that are proportional? No Yes Maybe End Review I NEED HELP!

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13. Try Again Back To Question 4 HERE IS A HINT: HERE IS A HINT: Draw two squares and then give them measurements (remember all 4 sides of a square are equal) and then set-up proportions. Cross multiply to ensure that they are proportional! End Review

14. A B C The shapes below are similar. Use proportions to find the missing side. 12 inches 9 inches 15 inches End Review I NEED HELP! 12 in 16 in 20 in 9 in 15 in x in

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16. Try Again Back To Question 5 HERE IS A HINT: HERE IS A HINT: It would be hard to use size change factor on this problem. Set-up a proportion to compare the first triangle to the second triangle. If it helps, draw the triangles on a piece of paper and then use our color coding method to help you. End Review

17. A B C Use proportions to determine if the rectangles below are similar. Yes, they are similar No, they are not similar Can not tell from the information given End Review I NEED HELP! 6 in 3 in 4 in 1 in

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19. Try Again Back To Question 6 HERE IS A HINT: HERE IS A HINT: For two shapes to be similar, their corresponding sides must be proportional. To determine this, set-up you proportion and cross multiply… are your cross products equal? End Review

20. A B C Which of the following is a rate? donuts to bagels boys to girls pencils per giraffe End Review I NEED HELP!

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22. Try Again Back To Question 7 HERE IS A HINT: HERE IS A HINT: use the “to”/“per” trick!!! End Review

23. A B C Use cross multiplication to find the value of the variable. 30 15 2 End Review I NEED HELP!

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25. Try Again Back To Question 8 HERE IS A HINT: HERE IS A HINT: Try using a calculator to make sure that your computation is correct. The first step should read: 2 75 = 5 x End Review

26. A B C John is a skilled free throw shooter. He can make 8 shots out of every 9 shots he takes. If John takes 72 shots, how many would he make at this rate? 72 shots made 71 shots made 64 shots made End Review I NEED HELP!

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28. Try Again Back To Question 9 HERE IS A HINT: HERE IS A HINT: your proportion should be set-up with shots made in the numerator and shots attempted (the shots he takes) in the denominator End Review

29. A B C Use the table below to predict how much it would cost to purchase 3 t-shirts. End Review $16.25 $4.00 $3.75 I NEED HELP! T-Shirts2458 Cost ($)2.505.006.2510.00

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31. Try Again Back To Question 10 HERE IS A HINT: HERE IS A HINT: There are many methods you can use to solve this problem. First, you can set up a proportion and cross multiply… or you can find the cost of one shirt and multiply up to find the cost for 3… or you can find numbers that add or subtract to make 3 t-shirts, or you can find the “in between” if there is one, that would provide the cost for 3 t-shirts End Review

32. A B C End Review tip tax discount I NEED HELP! One of the terms below is different from the others. Which term is it?

33. Great Job!!!! End Review Next Question Did you know that this is correct because it is the only term that means you will have to subtract from the cost rather then add?

34. Try Again Back To Question 11 HERE IS A HINT: HERE IS A HINT: Think about what operation each of these terms implies. Which ones will you have to add to the cost? Which ones will you need to subtract from the cost? End Review

35. A B C End Review 125 12.5 1.25 I NEED HELP! What number is 5% of 250?

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37. Try Again Back To Question 12 HERE IS A HINT: End Review

38. A B C End Review 25% 20% 500% I NEED HELP! What percent of 360 is 72?

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40. Try Again Back To Question 13 HERE IS A HINT: HERE IS A HINT: Did you place the correct numbers in the correct locations of your proportion based on the “is” and “of”? End Review

41. A B End Review Yes No I NEED HELP! Laura painted her room with pink paint that was made by mixing paint at a ratio of 5 parts white paint to 2 parts red paint. Will a mixture of paint that is 15 parts white to 5 parts red create the same shade of pink as the paint that Laura used? Use your knowledge of proportions to explain your answer

42. Great Job!!!! End Review Next Question You got the right answer but can you explain why? Set up a proportion to compare the two mixtures. Are the cross products in this proportion equal? No they are not, so that means the mixtures are not proportional! You can also think about it this way… the amount of white paint was tripled, if the amount of red paint were tripled, it would have to be 6 parts red and the second mixture is only 2 parts red.

43. Try Again Back To Question 14 End Review You got the right answer but can you explain why? Set up a proportion to compare the two mixtures. Are the cross products in this proportion equal? No they are not, so that means the mixtures are not proportional! You can also think about it this way… the amount of white paint was tripled, if the amount of red paint were tripled, it would have to be 6 parts red and the second mixture is only 2 parts red.

44. A B C End Review 20 students 200 students 8 students I NEED HELP! There are 40 students in Mrs. Schuman’s art class. If 20% of the students have a dog, how many students have a dog?

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46. Try Again Back To Question 15 HERE IS A HINT: HERE IS A HINT: The percent is easy to place in our proportion so the only trouble we might have is the 40 students… does this number represent the whole class or just a part of the class? End Review

47. A B C End Review $14.70 $27.30 $27.93 I NEED HELP! Mr. Minnuto went to Lowes to buy paint for his daughter’s bedroom. A two gallon bucket of paint costs $42. However, when Mr. Minnuto went to check out he found a coupon that offered a discount of 35% off. How much will the gallon of paint cost Mr. Minnuto?

48. Great Job!!!! End Review

49. Try Again Back To Question 16 HERE IS A HINT: HERE IS A HINT: Did you answer the question that was asked? The question wanted to know what the final cost would be… that means you need to do something with the original cost and the discount. End Review