You are driving to visit a friend in another state who lives 440 miles away. You are driving 55 miles per hour and have already driven 275 miles. Write and solve an equation to find how much longer in hours you must drive to reach your destination.

55h + 275h = 440;

55h + 275 = 440; h = 3

55h – 275 = 440; h = 13

440h – 275 = 55; h = 0.75

Question

You are driving to visit a friend in another state who lives 440 miles away. You are driving 55 miles per hour and have already driven 275 miles. Write and solve an equation to find how much longer in hours you must drive to reach your destination.

55h + 275h = 440;

55h + 275 = 440; h = 3

55h – 275 = 440; h = 13

440h – 275 = 55; h = 0.75

Mercury · Answer

the equation is being set up as

miles driven = total miles

on the left side, the miles driven going at 55 miles per hour, for h hours, is 55*h
add on the hours that are already driven (275)

on the right side is simply the total miles of the whole trip (440)

should be straightforward to set up the equation and solve for h