6th Chapter 6 Review 2/12

Ratios

100

Write equivalent ratios in two different forms: 4 to 7

4/7 and 4:7

200

Write three equivalent ratios to 6 to 1

12/2 or 18/3 or 24/4 etc.

300

Write the ratio in simplest form: 4 to 40

1 to 10

400

Write the ratio in simplest form: 64 to 512

1 to 8

500

Which ratio is BIGGER: 

1 2/5 to 5

OR

3 to 10

3 to 10

Unit Rate/Unit Cost

100

Express as a unit rate: Avery uses 60 minutes to answer 75 questions

0.8 questions per minute

200

Express as a unit cost: 3.5 pounds of apples cost $4.90

$1.40 per pound

300

Write the ratio as a unit rate: 300 calories burned in 1/3 hour

900 calories burned per hour

400

Write the ratio as a unit rate: 500 miles in 25 hours

20 miles per hour

500

Which is the better buy: 

8 oz of cream cheese for $1.98

OR

1 pound of cream cheese for $3.75

1 pound for $3.75

Solve Proportions

100

Does this form a proportion?

4/5 = 12/15

Yes

200

Does this form a proportion? 

9/16 = 3/4

No

300

Does this form a proportion?

1/2 = 17/34

Yes

400

Solve for the missing term:

4/p = 14/28

p = 8

500

Solve for the missing term:

100/50 = s/45

s = 90

Direct Proportion

200

At what average speed does Adele ride her bicycle if she rides 28 miles in 3.5 hours?

8 miles per hour

300

At what average speed can a locust fly if it can travel 46 meters in 5 seconds?

9.2 meters/second

400

Write as a proportion:

Keisha and Katie ran at the same speed. Keisha ran 3 miles in 21 minutes. Katie ran 2 miles in 14 minutes.

3/21 = 2/14

OR 

3/2 = 21/14

500

Jorge took a speed reading class last Saturday from 9:00 am to 4:00 pm. He learned that he could speed read 330 pages of a novel in one hour. How many pages does he speed read in 225 minutes?

1237.5 pages in 225 minutes

Proportion by Parts

300

Toby buys 40 pairs of socks in packs of 5 pairs of white socks and 3 pairs of black socks. How many pairs of each color does he buy?

25 pairs of white socks and 15 pairs of black socks.

400

Nate is tiling a floor with a pattern that requires 16 white tiles for every 9 blue tiles. The floor has an area of 600 square feet, and each tile is 1 square foot. How many of each color tile does Nate need?

384 white tiles and 216 blue tiles

500

A rancher owns 180 goats. For every 7 brown goats, there are 3 black goats and 5 white goats. How many of each color goat does he own?

84 brown goats, 36 black goats, and 60 white goats