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anzhelika [568]
3 years ago
14

Wave erosion causes a certain coastline to recede at a rate of 3 centimeters each year. This occurs uninterrupted for a period o

f 8 years
Mathematics
2 answers:
stiv31 [10]3 years ago
6 0

Answer: After 8 years, the coastline has receded 24 centimeters

Step-by-step explanation:

We know that each year, the coastline recedes by 3 centimeters. If this occurs uninterrupted for 8 years, then the total distance that the coastline recedes is 8 times the amount that it recedes in a year, this is:

D = 8*3cm = 24cm

After 8 years, the coastline has receded 24 centimeters

alina1380 [7]3 years ago
3 0

Solution: The expression 8(–3) represent the recession of the coastline recedes 3 centimeters each year. 8(–3)=–24 So, the coastline’s new position is 24 centimeters farther inland than it was 8 years ago

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