Unit 2 Test Review

1-6

• How can you find out if two rates or ratios are equivalent?

• How do you create equivalent ratios or rates?

1-6

• The ratio of boys to total students in Lisa’s class is 4:9.– Find the number of girls in class if there are 27

students.

1-6

• Jennifer saved $48 in 5 weeks. Her brother saved $64 in 49 days. Are the rates at which they saved equivalent? Explain your reasoning.

– If Kent’s rate of saving is the same as Jennifer’s, how much will he have saved after 12 days?

1-7

• How do you solve ratio and rate problems?

1-7

• There are 57 ounces of dog biscuits in 5 boxes. At this rate, how many ounces of dog biscuits are in 8 boxes?

1-7

• At a train station, trains depart at a rate of 4 every 15 minutes. At this rate, how many trains would depart in two hours?

2-1

• How do you convert a decimal to a fraction?

• How do you convert a fraction to a decimal?

2-1

• Ned ran 0.35 miles on Monday, 1.2 miles on Tuesday, and 2.73 miles on Wednesday. Write the total distance he ran, in miles, as a mixed number in simplest form.

2-1

• In a survey, 5 out of 25 students said football was their favorite sport. Express the number of students who did not say football was their favorite sport as a decimal.

2-2

• How do you convert a percent to a fraction?

• How do you convert a fraction to a percent?

2-2

• During his workout, Frank spent 21% of his time on the treadmill and 13% of his time on the elliptical. What fraction of his workout was spent doing other things?

2-3

• How do you convert a percent to a decimal?

• How do you convert a decimal to a percent?

2-3

• In one day at a store, 11% of the sales were from shoes. Write the percentage of sales not from shoes as a decimal.

2-7

• How do you find the percent of a number?

2-7

• 0.6% of 36

2-7

• There were 250 people in a movie theater. Twenty percent of them received the student discount and 12% received the senior citizen discount. The rest did not receive a discount. How many people did not receive a discount?

1-5

• What do you know about graphing ratio tables?– Graph the ordered pairs– Be able to describe pattern in graph by discussing

relationship between units on both axes– The greater the ratio/rate, the steeper the line will

appear

1-4

• What do you know about ratio tables?– Columns are filled with pairs of numbers that have

the same ratio– Multiply/divide going across the rows– First column should be units

1-4

• Cal’s Calculator Company produces scientific calculators. The company can produce 355 calculators in 5 hours. The company produces calculators 24 hours a day. After 4 whole days of work, how many calculators can the company produce? Create a ratio table and solve.

• If the company charges $15 per calculator, how much money will it make per day from calculator sales?

1-3

• What do you know about rates?– Need units– Comparison of two quantities with different unit by

division– Normally written as fraction

• What do you know about unit rates?– Denominator is 1– Show work by writing as fraction with units

1-3

• George went to Costco and bought four cases of Gatorade for $54.52. Each case contains 24 bottles of Gatorade. What is the price of one bottle of Gatorade?

1-3

• Boxes of granola bars are on sale at Jewel. The boxes are the same size but different brands. You need to purchase 12 boxes. Quaker granola bars are 3 boxes for $4.50 and Nature Valley granola bars are 4 boxes for $5.25.– Which granola bars should you purchase if you

want to spend a lesser amount?– How much money will you save?

1-2

• What do you know about ratios?– No units!– Order matters– Be careful of wording of problem