Rational and Proportions

Write a proportion to find how many points a student needs to score on a test in order to get the given percent:
The test is worth 12 points.
The test score is 75%.

• p/12=100/75

• p/100=12/75

• p/12=75/100

• p/75=12/100

Write a proportion to find how many points a student needs to score on a test in order to get the given percent:
The test is worth 60 points.
The test score is 50%.

• p/100=50/60

• p/50=60/100

• p/60=100/50

• p/60=50/100

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

If there are 6 red cars sold to every 3 blue cars, is it the same proportion as 2 red cars to every 1 blue car? 

• Yes

• No

What is a proportion?

• When two ratios can be simplified

• When two ratios are equivalent and show the same value

• When two ratios have the exact same numbers

• When two ratios can be multiplied by 2

Solve for x 

• x = 1/10

• x = 10

• x = 4

• x = 5

Solve the equation for x:

• 17

• 16

• 15

• 14

Solve the proportion:

• 4

• 21

• 24

• 3