Answer
See explanations.
Work Step by Step
Step 1. Read the word problem carefully; pay attention to possible variables and given quantities.
Step 2. Assign variables to unknown quantities in the problem; establish relations between variables and between the variable and known quantities based on the given conditions.
Step 3. Solve the system of equations. If the number of equations is less than the number of variables, read the problem again to find extra equations.
Step 4. Check you answers in the original problem, write units, and describe your answers.
