Answer:
a) Means: 24 and 2; Extremes: 4 and 12
b) Means: 6 and 16; Extremes: 24 and 4
c) Means: 8 and 8; Extremes: 4 and 16
d) Means: 50 and 3; Extremes: 6 and 25
Step-by-step explanation:
The Means and Extremes in a proportion are defined based on the writing the proportion in one lie using colons the indicate the fraction, like in:
a : b = c : d The extremes values here are those that you see at the extreme left and extreme right of that expression. That is: a, and d.
The Means are the values that appear in the middle of the one line expression, that is: b and c.
Recall as well that the proportion can also be written with fractions:
a : b = c : d is the same as: a / b = c / d
so convert the expression to a one line with colons when the question comes in fraction form, and that way you can answer.
Answer:
(3, 5)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtract Property of Equality
<u>Algebra I</u>
- Terms/Coefficients
- Coordinates (x, y)
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
y = 2x - 1
2x + 4y = 26
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y</em>: 2x + 4(2x - 1) = 26
- Distribute 4: 2x + 8x - 4 = 26
- Combine like terms: 10x - 4 = 26
- [Addition Property of Equality] Add 4 on both sides: 10x = 30
- [Division Property of Equality] Divide 10 on both sides: x = 3
<u>Step 3: Solve for </u><em><u>y</u></em>
- Define equation: y = 2x - 1
- Substitute in <em>x</em>: y = 2(3) - 1
- Multiply: y = 6 - 1
- Subtract: y = 5
Answer:
a
Step-by-step explanation:
because they are vertical angles they are equal to each other so we write the equation 132=5x+7
step 1 subtract each side by 7
125=5x
step 2 divide each side by 5
x=25
Answer:
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The percentage of their commission is 3.85%
700/18200= 0.03846
0.03846 x 100 = about 3.85
