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borishaifa [10]
3 years ago
8

on a scale drawing a bookshelf is 8 inches tall.the scale factor is 1/8.what is the height of the bookshelf?

Mathematics
1 answer:
dlinn [17]3 years ago
3 0
If the scale factor is 1/8, it means that it is 1/8 of the actual size. So, 8 inches-the scale size is 8 8 times taller in real life.

So, 8 × 8 is 64.

The height of the bookshelf is 64 inches.
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According to the table, what was the rate of change between 2015 and 2017?
Citrus2011 [14]

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10 employees because 2015 had 45 employees and 2017 had 55 employees. 45 + 55 = 10

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PLEASE HELP ASAP ITS DUE SOON AND I NEED THE ANSWER RN! SHOW YOUR WORK ILL GIVE BRAINLIEST
IceJOKER [234]

Answer:

(12, -6)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<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>

-4x = y - 42

x = 18 + y

<u>Step 2: Solve for </u><em><u>y</u></em>

  1. Substitute in <em>x</em>:                                                                                                -4(18 + y) = y - 42
  2. Distribute -4:                                                                                                   -72 - 4y = y - 42
  3. [Addition Property of Equality] Add 4y on both sides:                                 -72 = 5y - 42
  4. [Addition Property of Equality] Add 42 on both sides:                                -30 = 5y
  5. [Division Property of Equality] Divide 5 on both sides:                               -6 = y
  6. Rewrite/Rearrange:                                                                                         y = -6

<u>Step 3: Solve for </u><em><u>x</u></em>

  1. Define original equation:                                                                               x = 18 + y
  2. Substitute in <em>y</em>:                                                                                                x = 18 - 6
  3. Subtract:                                                                                                           x = 12
6 0
2 years ago
A rectangular pool is 21 meters wide and 28 meters long. If you swim diagonally across the pool, how many meters would you be sw
babunello [35]
To figure this out, you must use the Pythagorean theorem.
That is were you take the width of the opject, and square it (21 squared). and take the length of the object and square it (28 squared),
 then add those together. (21 squared + 28 squared) = NUMBER
then take that number that you got, and find the square root of it. (<span>√NUMBER)
and that's your answer.

So it would be: 35 meters</span>
6 0
3 years ago
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