7.1-7.2 Practice

An equation that states two ratios are equal.

• extended ratio

• proportion

• rate of change

Write the ratio in simplest form.

28 elementary schools to 16 middle schools

• 28:16

• 16:28

• 7:4

• 8:3

Write the ratio in simplest form.

30 treadmills to 36 elliptical machines

• 30:36

• 10:12

• 5:6

• 15:18

Write the ratio in simplest form.

In the word FLASHLIGHT what is the ratio of vowels to total letters?

• 10:2

• 1:5

• 1:2

• 1:10

Solve the variable.

• k=5

• k=3.3333333

• k=60

• k=90

Solve the variable.

• x=6.5

• x=8

• x=4

• x=5.5

Solve for b 

• 8
• 17/12
• 4/3
• 1/8

Tags

CCSS.7.EE.B.3

If the sides of a triangle are in a ratio of 3:5:7, and the perimeter is 240, what is the measure of the smallest side?

• 16
• 48
• 12
• 36

Tags

CCSS.3.MD.D.8

The angles of a triangle are in an extended ratio of 5:7:3. What is the measure of the largest angle?

• 84^o
• 12^o
• 60^o
• 36^o

Tags

CCSS.8.G.A.5

The ratio of cars to trucks in the parking lot is 3:5.  If there are 360 vehicles in the parking lot, how may are trucks?

• x = 270 cars
• x = 225 cars
• x = 225 trucks
• x = 270 trucks