Adam bike 15 miles in 3 hours. Ben bike 12 miles in 2 hours. What was there speed?
1 answer:
You might be interested in
For this case we have the following system of two equations with two unknowns:
Adding both equations we have to eliminate the variable "x":
Adding common terms, keeping in mind that different signs are subtracted and the sign of the major is placed:
Answer:
Option A