Answer:
18.6 miles
Explanation:
You want to know how many more miles Chris must drive if he has driven 5.4 of the 24 miles he intends to drive.
Sum
The sum of x = remaining miles and miles driven will be the total intended:
x + 5.4 = 24
Any sum can be rearranged to a difference:
x = 24 -5.4 . . . . . . subtract 5.4 from both sides of the equation
x = 18.6 . . . . . . . evaluate the difference
Chris must drive 18.6 miles more.
<95141404393>