PHS:7.1 Ratios, Extended Ratios, Proportions & CrossProducts

The cookie jar has six chocolate chip cookies, seven sugar cookies, and five oatmeal cookies. What is the ratio of oatmeal to chocolate chip cookies?

• 6:5

• 5:6

• 6:11

• 6:11

The cookie jar has six chocolate chip cookies, seven sugar cookies, and five oatmeal cookies. What is the Extended Ratio of sugar to oatmeal to chocolate chip cookies?

• 7 : 6 : 5

• 5 : 6 : 7

• 7 : 5 : 6

• 6 : 7 : 5

Donny has a bag of LEGOS. There are 6 yellow, 3 red, and 8 blue LEGOS. What is the ratio of red to yellow LEGOS? (Remember a ratio can also be expresed as a fraction, the answer needs to be reduced to simplest form)

• 1/2

• 6/3

• 2/1

• 3/6

The cookie jar has six sugar cookies, eight chocolate chip cookies and five oatmeal cookies. What is the extended ratio of sugar to oatmeal to chocolate chip cookies?

• 6 : 5 : 8

• 5 : 6 : 8

• 6 : 8 : 5

• 8 : 6 : 5

A triangle’s angle measures are in the extended ratio of 2 : 4 : 9. Find the measures of the angles.

• 20^o, 40^o, 90^o

• 24^o, 48^o, 108^o

• 24^o, 32^o, 124^o

• 20^o, 40^o, 100^o

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

• 18

• 12

• 4

• 15

A triangle’s angle measures are in the extended ratio of 3 : 4 : 11. Find the measures of the angles.

• 30^o, 40^o, 90^o

• 30^o, 40^o, 110^o

• 10^o, 30^o, 140^o

• 40^o, 40^o, 100^o

 $\frac{k}{6}\ =\ \frac{15}{18}$   

What is the cross product? 

• (k)(6) = (15)(18)

• (k)(18) = (6)(15)

• (k)(15) = (6)(18)

A triangle’s angle measures are in the extended ratio of 1 : 2 : 3. Find the measures of the angles.

• 30^o, 60^o, 90^o

• 10^o, 20^o, 30^o

• 20^o, 40^o, 60^o

• 30^o, 50^o, 90^°

Solve the proportion.

 $\frac{\text{k}}{\text{6}}\ =\ \frac{15}{18}$  

• k = 5

• k = 3

• k = 60

• k = 90