Consider the following ratios and state that whether these ratios forms a proportion?
Case1 - 20 friends to 15 strangers
Case 2 - 4 friends to 3 strangers
A. Yes
B. No

Part B
Find the ratio of the number of friends in Case 1 to the number of friends in Case 2.


Note: Type the answer as shown. Ex: (3:8)

Prt A- Yes

Part B- 5:1

Step-by-step explanation:

The ratios in cases 1 and 2 form a proportion. This can be seen by dividing case a by 5 which gives 4:3;

i.e 20:15 = 20

                15

If you divide both numerator and denominator by 5, we have 4/3.

This shows that case 1 and 2 have the same proportions of friends to strangers.

Part B.

The number of friends in case 1 is 20 while in case 2 is 4.

we have, 20:4

= 20

   4

Dividing each by 4, we have 5:1.

This means that the ratio of friends that in case 1 to case 2 is 5:1.

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