To find out how long it will take a phone to charge 100% if it charges 3% every 5 minutes, you have to put it in a fraction.
3/5
3 is the percent charged and 5 is the time.
You have to find out what 100 divided by 3 is. The answer is 33.3.
So,
3/5 times 33.3 is equal to 99.9/166.5.
It will take 166.5 minutes for the phone to charge to about 100%.
hope it helps.
can you choose mine as the brainliest answer
The question is an illustration of a linear equation
The solution to the equation
is 
<h3>What are linear equations?</h3>
These are equations that have constant rates or slopes
The equation is given as:

Collect like terms in the above equation

Evaluate the like terms

Multiply both sides of the equation by 2

Hence, the value of x is 14
Read more about equations at:
brainly.com/question/14323743
The first option I believe thank me plz