This equation shows how the total distance Warren has walked depends on the number of trips he has made to school d=t+3 The variable t represents the number of trips he has made, and the variable d represents the total distance walked in kilometers. How many trips will Warren have to make in all to walk a total of 12 kilometers?

9 trips

Step-by-step explanation:

Given that :

Total Distance walked is dependent on the total number of trips made to school ;

d = t + 3 ;

d = total distance in kilometers ; t = number of trips made ;

Number of trips required to walk a total of 12 kilometers ;

d = 12

Putting d = 12 in the equation ;

12 = t + 3

12 - 3 = t

9 = t

Hence, Number of trips made = 9

answer: the answer is 35%