Answer:
(-1, 2)
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Algebra I</u>
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
-2x - y = 0
10x + y = -8
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Elimination</em>
- Combine equations: 8x = -8
- Isolate <em>x</em>: x = -1
<u>Step 3: Solve for </u><em><u>y</u></em>
- Define equation: -2x - y = 0
- Substitute in <em>x</em>: -2(-1) - y = 0
- Multiply: 2 - y = 0
- Isolate <em>y</em> term: -y = -2
- Isolate <em>y</em>: y = 2
9514 1404 393
Answer:
x = 39
Step-by-step explanation:
The Pythagorean theorem tells you the sum of the squares of the sides of a right triangle is the square of the hypotenuse.
x² +80² = 89²
x² = 89² -80² = 7921 -6400 = 1521
x = √1521
x = 39
Proportionately, the amount of the drug that the patient should be given is <u>2,993.71 mg</u>.
<h3>What is the proportion?</h3>
The proportion is the ratio of a variable to another.
Proportion defines the numerical relationships among variables.
Proportion shows how much a value is contained in the whole.
<h3>Data and Calculations:</h3>
2.20462 lb = 1 kg
165 lb = 74.8428 kg (165/2.20462)
1 kg = 40 mg of the drug
74.8428 kg = 2,993.71 mg (74.8428 kg x 40 mg)
Thus, the amount of the drug that the patient should be given is <u>2,993.71 mg</u>.
Learn more about proportions at brainly.com/question/870035
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Answer
0.¯¯¯¯81 or
Step-by-step explanation:
( the line is suppose to be over the .81)
