A student runs 2 minutes for every 20 minutes he walks. For how long would the student walk if he runs for 3 minutes? pllzz answer it is a test it is do in 10 minutes.

30 mins

Step-by-step explanation:

we already know that 2 minutes running is 20 minutes walking, so we can say that its already more than 20 mins, now he has one min left for running, thats half of twenty(10), 10+20=30

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )