(d) Jim walks three miles in 45 minutes. How long does it take for him to walk 5 miles?

Step-by-step explanation:

We know that:

Solution:

Hence, it takes 75 minutes for Jim to walk 5 miles.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.