a barrier island is 1 km wide and 10 km long. If erosion by a longshore current causes the island to lose 1.5 m of its with per year, how long will it take for the island to lose one-fourth of its width?
I need help with this question
Lina it is not nice to call other people "dumbys" (dummies) you are the one who is wrong you can multiply 0.25 and 1,000 =250 after you can divide 250 and divided by 1.5 which the answer is 166.66666 and so on and on. Lina not trying to be mean but ON YOUR FACE LINA YOU DUMMY!!😎😎😎😎😎😎😎 this felt good
1 km = 1000 m
0.25 * 1000m = 250m = 1/4 of its width
250 / 1.5 = ? years
To find out how long it will take for the island to lose one-fourth of its width, we can use the erosion rate and the initial width of the island.
Step 1: Calculate the total amount of width the island will lose to reach one-fourth of its initial width.
One-fourth of the initial width is (1/4) * 1 km = 0.25 km.
Step 2: Calculate how many meters the island will lose to reach one-fourth of its initial width.
Since 1 km is equal to 1000 meters, the island will lose (0.25 km) * 1000 meters/km = 250 meters.
Step 3: Calculate the time required for the island to lose 250 meters of its width.
The erosion rate is given as 1.5 meters per year. Therefore, the time required will be (250 meters) / (1.5 meters per year) = 166.67 years.
So, it will take approximately 166.67 years for the barrier island to lose one-fourth of its width due to erosion by the longshore current.