Answer:
The total length of the road after the crew has worked 31 days is 183 miles.
Explanation:
As given
A construction crew is lengthening a road.
The road started with a length of 59 miles, and the crew is adding 4 miles to the road each day.
let L represent the total length of the road (in miles).
let D represent the number of days the crew has worked.
Than the equation becomes
L = 59 + 4D
Now find out the total length of the road after the crew has worked 31 days.
D = 31 days
Put in the equation
L = 59 + 4 × 31
= 59 + 124
L = 183 miles
Therefore the total length of the road after the crew has worked 31 days is 183 miles.