Which two ratios form a proportion? a) 1 : 3 and 6 : 3 b) 1 : 3 and 3 : 6 c) 3 : 1 and 9 : 3 d) 3 : 1 and 3 : 9

Option (C)

Step-by-step explanation:

Two ratios are proportional when one is a multiple of the other.

Consider A: 1 : 3 and 6 : 3

6 : 3 is equivalent to 3(2 : 1). 1 : 3 and 3(2 : 1) are not proportional.

Consider B : 1 : 3 and 3 : 6.

3 : 6 is equivalent to 3(1 : 2).

Again the two ratios are not proportional.

Now for Option C : 3 : 1 and 9 : 3.

9 : 3 is equivalent to 3(3 : 1). Clearly, the two ratios are proportional.

Hence, Option C is the answer.

For similar reasons Option D can be eliminated as well.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

a. (14,375+570)(5.3) b. 158,417$

step-by-step explanation:

a. you are basically just setting up the equation. f= amount of debt hence 14,375. g= how much she is borrowing from her parents weekly hence 570 and t= the interest on her debt. creating the equation.

b.   14,375+570= 14,945

      14,945 x 5.3 = 79,208.5

      79,208.5 x 2(years) = 158,417(answer)