Ratio and proportions

Which of these ratios is equivalent to 3:4?

• 12:9
• 9:20
• 9:12
• 803:804

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

A class has 30 students. 18 are boys. What is the ratio of boys to girls?

• 12:18
• 3:2
• 30:18
• 18:7

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Solve for x
20/5 = x/25

• x=100
• x=4
• x=120
• x=5

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve for n
12/6 =  4/n

• n=4
• n=2
• n=3
• n=6

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve for x

• x=6.5
• x=8
• x=4
• x=5.5

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

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

Tags

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Solve the proportion:

• 4
• 8
• 14
• 10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

The ratio of pass to fail in PE class is 5:1.  If there are 90 students in PE, how many are passing?

• 75 students are passing
• 75 are failing
• 15 students are passing 
• 15 students are failing

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

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.6.RP.A.1

CCSS.6.RP.A.3

In my fish tank, the ratio of red fish to blue fish is 3:5. There are 20 blue fish. How many red fish are there?

• 18
• 12
• 4
• 15

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3