Name: _______________________________Chapter 4 – Quiz Review

There are 3 red, 7 blue, and 5 yellow balloons.1. Write the ratio of blue balloons to total balloons in al three forms. Write your answer in

simplest form.

2. Tell whether the ratio of red to blue balloons or the ratio of yellow balloons to total balloons is greater.

Find each unit rate.3. 540 ft in 90 s 4. 436 mi in 4 hr

Find each unit price. Then decide which is the better buy.

5.$ 5625galor

$32.0515 gal 6.

$1605g or

$3159g

Determine if the ratios are proportional.

7.927, 620 8.

1525, 2030 9.

2114, 1812

Find a ratio equivalent to the given ratio. Then use the ratios to write a proportion.

10.1012 11.

4550 12.

915

Use cross products to solve each proportion.

13.46=n3 14.

2a= 515

15.b1.5

=83 16.

1611

=96x

17.2y=15 18.

72=70w

Convert each measure.19. 32 fl z to pt 20. 1.5 T to lb

21. 18 L to mL 22. 720 mg to g

23. 5.3 km to m 24. 0.6 cm to mm

Use conversion factors to find each rate.25. 162 lb/yr to lb/mo 26. 1,232 ft/min to mi/h

Tell whether the figures are similar.27.

28.

Δ JKL Δ≝. Find the unknown measures.29. A rectangular photo frame is 24 cm long and 9 cm wide. A frame that is similar in shape is

3 cm wide. Find the length of the frame.

30. The Wright brother’s Flyer has a 484-inch wingspan. Carla bought a model of the plane

with a scale factor of 140 . What is the model’s wingspan?