Question

A construction crew is lengthening a road that originally measured 58 miles. The crew is adding one mile to the road each day. The length, L (in miles), after d days of construction is given by the following function.L (D) -58+dWhat is the length of the road after 31 days?miles

Answer 1

We have a situation expressed with the following equation

$L(d)=58+d$

where L is the miles after a number d of days and d is the number of days

we must find the miles after 31 days of construction, i.e. we replace the value d = 31

$\begin{gathered} L(31)=58+31 \\ L(31)=89 \end{gathered}$

In conclusion, the answer is 89 miles