Comparing Bits and Pieces Review Guide
Summative Part II- Ratios, Proportions, Unit Rates
Name: ______Period: ______Summative Date: ______
1.)The ratio of mystery to science fiction books in Mrs. Hannan’s classroom is 25 to 40.
a.) What is the ratio of mystery books to science fiction books? Be sure to simplify and write in all three ways.
______
b.) What is the ratio of science fiction books to total books?
______
2.)Beth walks dog at a local dog daycare. During one hour of work, she walked a total of 18 dogs. Six of those dogs were labs.
a.) What is the ratio of labs walked to total number of dogs walked? **Be sure to simplify your ratio!**
b.) Write a comparison statement using the words “for every” or “per” to describe this relationship. ______
c.) Suppose Beth continues to walk dogs at this rate. How many labs will she walk in four hours? Set up a proportion to support your answer.
Labs walked =
Hour
3.) Bobby can run 5 laps in 20 minutes.
a.) What is the ratio of laps to minutes? **Be sure to simplify**
b.) What is the unit rate of laps to minutes? Write a comparison statement to describe this relationship.
______
c.) If Bobby were to continue running at this rate, how many laps can he run in 1 hour?
4.) Find the missing value of the variable in each proportion to make equivalent ratios.
a.) 4 = xb.) 20 = y
6 24 90 9
x = ______y = ______
5.) A recipe for cookies calls for 3 cups of sugar for every 8 cups of flour. If the baker is making a huge batch of cookies for a large event and needs 496 cups of flour, how much sugar is needed?
*Be sure to set up a proportion with labels to solve! This will take a couple of steps to solve for your final answer.Be sure to label your final answer
6.) Mrs. McLaughlin drove 350 miles in 5 hours at a constant speed. Mr. Destino drove 360 miles in 6 hours at a constant speed. Who drove at a faster rate?
*Be sure to set up a proportion for each driver to prove his or her unit rate of miles per hour.
7.) The can below shows Gina’s current money collectioncontaining coins and bills. Draw additional pieces of money in the can to make the ratio of bills to total pieces of money 8:13.
8.) Jamie climbed 339 feet up the rock wall. How many total yards did Jamie climb? (3 feet=1 yard)
**Be sure to set up a proportion to support your answer!**
Ketchup (oz) / BBQ Sauce (oz)4 / 2
6 / 3
4
14
20
16
9.) A sauce recipe adds 4 ounces of Ketchup for every 2 ounces of BBQ sauce.
a.) Complete the rate table to the right to show this relationship.
b.) Write a comparison statement using “for every” or “per” to describe the relationship between ketchup and BBQ. Be sure to simplify so you have the unit rate for BBQ sauce.
______
10.) Complete the rate table to show the number of pages Tonya can read per hour.
Pages Read / 24Hour / .25 / .5 / 1 / 2 / 3 / 4
a.) How many pages would Tonya readin 7 hours if she continues reading at this constant rate? Be sure to set up a proportion to help solve!!