Question

Find the proportion please answer number 5. 6. 8. And 9. :)

Answer 1

5. 28

6. 6

8. 1,232

9. 2

Explanation:

When you know both numerators (the numbers on top) or both denominators (numbers on bottom), you can divide the second by the first and then apply that to the other side. For example, on question five, I divided twenty by fifteen. The answer is 1.33333... or
`1(1)/(3)`, or
`(4)/(3)`. So I multiply 21 by this number and my answer is 28. If visualization helps:

`(15)/(21) =(20)/(y)`

Step 1: 20 ÷ 15 =
`(4)/(3)` (second number divided by first number, using the side where we know both numbers)

Step 2: 21 ×
`(4)/(3)` = 28 (y = 28. solved!)

You can do the same thing on question nine, even though the known numbers are on the bottom instead of the top. Fifteen divided by 120, then multiply sixteen by your answer - 0.125 - and you will see that j (i?) = 2 :)

If you have any questions, feel free to ask. Hope this helped!