This morning, sam walked 4 kilometers in 50 minutes. at what rate did sam walk?
use the formula r= d/t , where r is the rate , d is the distance, and t is the time.

a. 0.08 kilometers per minute
b. 12.5 kilometers per minute
c. 46 kilometers per minute
d. 200 kilometers per minute

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 : )

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.