15 is what percentage of 30

50%

Step-by-step explanation:

30/15 = 2

100/2 = 50

15:30*100 =

(15*100) : 30 =

1500:30 = 50

Now we have: 15 is what percent of 30 = 50

Question: 15 is what percent of 30?

Percentage solution with steps:

Step 1: We make the assumption that 30 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$.

Step 3: From step 1, it follows that $100/%=30$.

Step 4: In the same vein, $x/%=15$.

Step 5: This gives us a pair of simple equations:

$100/%=30 (1) $.

$x/%=15 (2) $.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$/frac{100/%}{x/%}=/frac{30}{15}$

Step 7: Taking the inverse (or reciprocal) of both sides yields

$/frac{x/%}{100/%}=/frac{15}{30}$

$/Rightarrow x=50/%$

Therefore, $15$ is $50/%$ of $30$.