Answer:
it will take 5days to reach a total of 180meters
Step-by-step explanation:
80m+20+20+20+20+20
=180meters
=5days
Answer: After 7 years, the value of the sailboat is $3045.49.
Step-by-step explanation:
Since we have given that
Original value of the sailboat = $9500
Depreciation rate = 15%
Number of years = 7
As we know the formula for "Compound Interest "i.e

where,
A denotes Amount
P denotes original value
r denotes rate of depreciation,
n denotes number of years.
So, our equation becomes ,

Hence, after 7 years, the value of the sailboat is $3045.49.
Since the sum of the angles of a triangle is 180 degrees, we simply have to add all the angles and equate it to 180 to solve for x. So:
100 + 12x + 4 + 14x - 2 = 180
26x = 78
x = 3
So, x is equal to 3.