Answer:
the sum of 4 and a number
4 plus a number
For this case we can solve the problem by means of the following rule of three:
94 --------> 100%
17 --------> x
Clearing x we have:
x = (17/94) * (100)
x = 18,08510638%
To the nearest tenth of a percent:
x = 18.1%
Answer:
This is 18.1% of his compact discs.
Answer:
18
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
<em>b</em> = 3
<em>y</em> = -3
5b - y
<u>Step 2: Evaluate</u>
- Substitute in variables: 5(3) - -3
- Multiply: 15 - - 3
- Subtract: 18
Answer:
z = 7.5
Step-by-step explanation:
Given that z is directly proportional to x and inversely proportional to y then the equation relating them is
z = ← k is the constant of proportionality
To find k use the condition when x = 16, y = 5, z = 16, then
k = = = 5
z = ← equation of proportionality
When x = 21, y = 14, then
z = = 7.5
Answer:
58 ft.
Step-by-step explanation:
We will use trigonometry to find the distance.
We know that he is 29 ft above the ground (26, height of building, + 3, height of bird).
We use the angle 60 and we see that we have a known side which is adjacent to the angle. The side we are trying to find is the hypotenuse. We will be using cos because cos uses adjacent and hypotenuse sides of triangle.
cos60 = 29/x
cos60x = 29
29/cos60 = x
x = 58
He must fly 58 feet in order to get to the ground.