As given,
Step 1: Pick any three-digit counting number
Lets pick the number 643
Step 2: Reverse the digits of the original number.
So, reverse becomes 346
Now, it says that the difference of these two numbers has a tens digit of 9.
Lets, check:
So, its true that the difference has a tens digit of 9.
Another example:
Lets take 449
So reverse is = 944
Difference =
Here also the tens digit is 9.
So, the condition applies to all 3 digit numbers.
2(4x2)+2(1/2 4x3.5)+(4x2)
2(8)+2(1/2 14)+8
16+ 2(7)+8
16+14+8
38 sq. ft.
For this problem, we have to set up the formula for the equation first. The equation should help us predict how long would it take to reach a life expectancy of 130 years. Let's start by denoting variable to present them in algebraic equations. Let x be the number of decades, while y is the number of years for life expectancy. The base year used here is 2009 with a life expectancy of 80 years. So, we will expect that 80 is a constant in the expression. We will add to this the number of decades multiplied by 5.4, because it stands for 5.4 additional years per decade. When you write this in an equation, it would be
y = 80 + 5.4x
Now, we substitute y=130.
130 = 80 + 5.4x
x = (130 - 80)/5.4
x = 9.259
Therefore, it would take approximately more than 9 decades. Projecting this amount of time from 2009, the year would be:
Projected year = 2009 + 9 decades * (10 years/1 decade)
Projected year = 2101
It would be in year 2101.
Answer:
it would be 25%
there is only one number that is greater than 6
Answer:
24 square inches
Step-by-step explanation:
We are given Image of letter E with height of 12 and width of 7
Inside space of height of 5 and width of 6
Initially calculate the area of rectangle ABKL = length *width = 12*7= 84 square inches
Now to get the area of given figure subtract the area of rectangle CDFE and HGJI from the rectangle ABKL
Area of CDEF = Area of HGJI because the length and width of the rectangles is same
Thus Area of CDEF = length *width =5*6 = 30 square inches
Thus the Area of HGJI = 30 square inches
Now subtract the area of both rectangles from the area of rectangle ABKL
⇒84-(30+30)
= 24 square inches .
Hence the area of given figure LETTER E = 24 square inches .