Hello!
10% off means there's a discount on the jacket, so we will be finding how much the discount is worth and then we'll subtract that from the original cost of the jacket.
Sales tax is basically additional money added to the cost of an item, so we will find what the sales tax is on this and then add that to the cost.
59.27 * 10% = 5.927
59.27 - 5.927 = 53.343
Now, find and add the sales tax.
53.343 * 7% = 3.73401
53.343 + 3.73401 = 57.07701
Round this to 57.1
The total cost of the jacket is $57.1.
Answer:
Answer: In year 2107 life expectancy will be 130 years
Step-by-step explanation:
First we understand which are the things given in the question.
In every decade life expectancy gains over 5.1 years.
Current life expectancy is about 80 years.
We have to calculate in how many decades life expectancy will increase from 80 years to 130 years which means increase of 50 years.
So from unitary method we can do the calculations.
∵ 5.1 years of life expectancy increases = in one decade
∴ 1 year of life expectancy will increase in = decades
∴ 50 years of life expectancy will increase in =×50 decades
= decades
or 9.8×10 years = 98 years
Therefore 130 years life expectancy will be in in year 2009+98 years =2107
Answer:
x=11/5
Step-by-step explanation:
isolate x
22/10 = 10x/10
22/10 = x
simplify
11/5 = x
Answer:
Step-by-step explanation:
The ladder forms a right angle triangle with the wall and the ground. The height of the ladder represents the hypotenuse of the right angle triangle.
Let x represent the distance from the top of the ladder to the bottom of wall. This forms the opposite side of the triangle.
The distance from the top of the ladder to the bottom of wall is 7ft more than the distance from the bottom of the ladder to the wall. This means that the distance from the bottom of the ladder to the wall is x - 7. It represents the adjacent side of the triangle.
To find the distance from the bottom of the ladder to the wall, we would apply Pythagorean theorem.
Hypotenuse² = opposite² + adjacent²
13² = x² + (x - 7)²
169 = x² + x² - 14x + 49
169 = 2x² - 14x + 49
2x² - 14x + 49 - 169 = 0
2x² - 14x - 120 = 0
Dividing through by 2, it becomes
x² - 7x - 60 = 0
x² + 5x - 12x - 60 = 0
x(x + 5) - 12(x + 5) = 0
(x - 12)(x + 5) = 0
x = 12 or x = - 5
the distance cannot be negative, so x = 12
the distance from the bottom of the ladder to the wall is
x - 7 = 12 - 7 = 5 feet
The surface area is 340ft^2