Choose the following ratios as a percent: 30 days out of 100 days
10%
30%
100%
3%

30%

Step-by-step explanation:

30% of 100 in simple terms stands for; "Thirty percent of a hundred."

This shows the ratio percentage correctly. And other choice would not be correct.

100% of 100 has nothing to do with 30.

3% is "three percent of 100." And again, has nothing to do with thirty.

10% also has nothing to do with thirty.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: