Question

[10.02] Solve the proportion 12 over 30 equals x over 5.. What is the value of x?
2
3
4
12

Answer 1

\[\large \large \frac{ 12 }{ 30 } = \frac{ x }{ 5 }\] For any proportion, you would want to do cross multiply.
So cross multiply:
30 * x = ?
12 * 5 = ?

Answer 2

Or in this case you can do, 30 divide by what number would give us 5?

Answer 3

6

Answer 4

Okay. So 30 / 6 = 5.
If you divide the denominator by 6, then you must divide the numerator by 6 as well; similar to an equation.

So, 12 / 6 = ?

Answer 5

2

Answer 6

Yes. So x = 2.
I hope this help! :)

Answer 7

thank you