Proportions Ratios

Simplify the ratio of
20 to 25

• to 5

• to 5

• to 5

• to 5

Simplify the ratio of
35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

What is a Ratio?

• Is a comparison of two quantities 

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one 

• Two decimals that can be multiplied

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

You travel 150 miles on 5 gallons. How far did you travel per gallon?

• 15 miles

• 30 miles

• 3 miles

• 25 miles

Solve for x:  6/12 = x / 6

• 36

• 2

• 12

• 3

Solve for x: 
x/4 = 6/8

• 4

• 2

• 3

• 10

If the angles of a triangle are in a 2:3:5 ratio, what is the measure of the smallest angles?

• 90^o

• 54^o

• 36^o

• 18^o

If there are 5 soccer players, 10 baseball players, and 15 basketball players, what is the ratio of baseball players to soccer players?

• 1 : 2

• 1 : 3

• 2 : 1

• 3 : 1

What do you think today's lesson will be on?

• Ratios

• Proportions

• Conversions

• All of the above!!