Answer:
1 ÷ 2(9 + x)
4.5 + 0.5x
Step-by-step explanation:
Given that
We write the expression i.e. half of the sum of $9 and a number
Here we need to write the two expression that is different from each other
So,
Let us assume the number be x.
Now The first equation depend on the information given will be:
= 1 ÷ 2(9 + x)
And, The second equation is
= (9 + x) ÷ 2
= 4.5 + 0.5x
Answer:
Possible values of x are whole numbers that are lesser than 15 inches
Step-by-step explanation:
We are given;
Base; b = 15 inches
Height; h = 10 inches
Formula for area of triangle is;
A_tria = ½bh
A_tria = ½ × 15 × 10
A_tria = 75 Sq.in
Now, formula for trapezoid is;
A_trapez = ½(a + b)h
Where a is the side parallel to the base.
We are told that the area of the trapezoid is less than twice the area of the triangle.
Thus;
½(a + 15)10 < 2(75)
Simplifying;
5(a + 15) < 150
Divide both sides by 5 to get;
a + 15 < 150/5
a + 15 < 30
Subtract 15 from both sides to get;
a < 30 - 15
a < 15
Possible values of x are whole numbers that are lesser than 15 inches
400,000,000,000 90,000,000,000 6,000,000,000 60,000,000 300,000 40,000 2,000 800 10 1 in standard form
Greeley [361]
Perhaps you want the sum: 496,060,342,811.
Answer:
x = 14
Step-by-step explanation:
These angles are vertical each other, another way of saying they are opposite each other in an X. Since these angles are vertical, they are equal!
60 = 5x - 10 | Given, from here on is basic algebra
70 = 5x | Add 10 to both sides
14 = x | Divide both sides by 5
Answer:
47.75 %
Step-by-step explanation:
It is a very well known issue that in Standard Normal Distribution porcentages of all values fall according to:
μ + σ will contain a 68.3 %
μ + 2σ will contain a 95.5 %
μ + 3σ will contain a 99.7 %
However it is extremely importan to understand that the quantities above mentioned are distributed simmetrically at both sides of the mean, that is, the intervals are:
[ μ - 0,5σ ; μ + 0,5σ ]
[ μ - 1σ ; μ + 1σ ]
[ μ - 1.5σ ; μ + 1.5σ ]
So we have to take that fact into account when applying the empirical rule. Then
With mean μ = 47 and σ = 10 is equal to say
values between 47 and 57 ( μ + σ ) we are talking about the second interval, but just half of it.
Then the approximate porcentage of light-bulb replacement requests is
95.5 /2 = 47.75 %
