Solving Proportions with Scale Factor

Which proportion would allow you to solve for the missing side, x?

• A

• B

• C

• D

Tags

CCSS.HSG.SRT.A.2

Solve the proportion:

• c = 4

• c = 8

• c = 14

• c = 10

Tags

CCSS.7.RP.A.2B

Solve for x 

• x = 6

• x = 25

• x = 28

• x = 17

Tags

CCSS.7.RP.A.2B

Solve for x 

• x = 16

• x = 28

• x = 1/26

• x = 26

Tags

CCSS.7.RP.A.2C

If the scale factor is 1 : 2.5, that means each side in figure B is 2.5 times as big as each side in figure A.

How long is side S?

Mathematical Equivalence

OFF

Tags

CCSS.7.G.A.1

Fairview and Rockville are 104 miles from each other. How far apart would the cities be on a map that has a scale of 1 cm : 13 miles? Solve the proportion.

• 7 cm

• 1352 cm

• 8 cm

• 4 cm

Tags

CCSS.7.RP.A.2C

Solve the proportion:

• 4

• 8

• 14

• 10

Tags

CCSS.7.RP.A.2C

A map of a city uses a scale of 1 centimeter = 3.5 meters. If a road shown on the map runs for 25 centimeters, how long is the road?

• 0.14 meters

• 87.5 meters

• 7.14 meters

• 90 meters

Tags

CCSS.6.RP.A.3B

When you solve proportions using the horizontal or ​ (a)   method, you are finding the scale ​ (b)  

If the ​ (c)   factor is bigger than 1, the digits get ​ (d)   .

The VALUE stays the SAME.

• vertical

• factor.

• scale

• bigger

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Tags

CCSS.7.RP.A.2B