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galben [10]
3 years ago
7

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

et 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.
Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
3 0

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

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