A construction crew is lengthening a road that originally measured 47 miles. The crew is adding one mile to the road each day. Let L be the

Question

A construction crew is lengthening a road that originally measured 47 miles. The crew is adding one mile to the road each day. Let L be the length (in miles) after D days of construction. Write an equation relating L to D. Then use this equation to find the length of the road after 31 days.

in progress 0
Hải Đăng 3 weeks 2021-09-05T12:57:57+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-09-05T12:59:45+00:00

    Answer:

    78 miles

    Step-by-step explanation:

    Given that:

    Original length, L = 47 miles

    Additional length (miles) added per day, = 1 mile

    Representing as an equation :

    L(D) = original length + additional length per day * number of days

    Let, D = number of days

    L(D) = 47 + D

    Length after 31 days :

    L(31) = 47 + 31

    = 78 miles

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )