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MArishka [77]
2 years ago
6

Suppose x=9 and y=3 what is x when y=21

Mathematics
1 answer:
madreJ [45]2 years ago
6 0
Answer = 63

Explanation

You could set up a ratio of y1/y2 = x1/x2
In your case

3/21=9/x
3x=189
X=63
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ahrayia [7]

Answer:

3.05 yards

Step-by-step explanation:

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8 0
3 years ago
Using the technique in the model above, find the missing sides in this 30°-60°-90° triangle.
lina2011 [118]
For this case what you should do is use the following trigonometric relationship:
 sin (x) = C.O / h
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Step-by-step explanation:

7 0
3 years ago
(n + 12) x 5 + 7n Need equivalent expression
astraxan [27]

Answer:

12n + 60

General Formulas and Concepts:

<u>Pre-Algebra</u>

Distributive Property

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define</u>

(n + 12) × 5 + 7n

<u>Step 2: Simplify</u>

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  2. Multiply:                            5n + 60 + 7n
  3. Combine like terms:        12n + 60
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3 years ago
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Tju [1.3M]
535.8933333 centimeters.<span />
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