Solution
621 ÷ 7 = n
621 ÷ 7 = <span>88.7142857143
</span>
n = 88.7142857143
Answer = 88.7142857143
Rounded = 88.7
Answer:
2,020
Step-by-step explanation:
671 X 3 = 2,013
2,013 + 7 = 2,020
Answer:
6.7
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Trigonometry</u>
- [Right Triangles Only] Pythagorean Theorem: a² + b² = c²
Step-by-step explanation:
<u>Step 1: Identify Variables</u>
Leg <em>a</em> = <em>x</em>
Leg <em>b</em> = 2
Hypotenuse <em>c</em> = 7
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute [PT]: x² + 2² = 7²
- Isolate <em>x </em>term: x² = 7² - 2²
- Exponents: x² = 49 - 4
- Subtract: x² = 45
- Isolate <em>x</em>: x = 3√5
- Evaluate: x = 6.7082
- Round: x ≈ 6.7
<span>8y−5x=11
8y = 5x + 11
y = 5/8x + 11/8 has slope = 5/8
</span><span>a line that is perpendicular to the line, slope is opposite and reciprocal so slope = - 8/5
answer
slope = -8/5</span>
The area of a rectangle is length + length + width + width, or 2l + 2w. Set these equal.
= 
+ + width + width
= 7 + 2w; subtract 7 from both sides
= 2w; divide both sides by 2
= w, or the width (in meters)
