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Morgarella [4.7K]
2 years ago
6

The ratio of books to magazines in the classroom is 7:3. If there are 28 books in the

Mathematics
1 answer:
ss7ja [257]2 years ago
6 0

Answer:

Step-by-step explanation:

7 books.................................3 magazines

14 books.................................6 magazines

21 books................................9 magazines

28 books..............................12 magazines

of course we ca do it

7/3=28/x

x=(3*28)/7=12

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Three angles of a quadrilateral are 75,120, 90,then the fourth angle..​
Roman55 [17]

Answer:

75

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>Geometry</u>

  • Sum of Angles in a Quadrilateral: 360

Step-by-step explanation:

<u>Step 1: Set up</u>

75 + 120 + 90 + ∠4 = 360

<u>Step 2: Solve</u>

  1. Add:                                                                                                                   285 + ∠4 = 360
  2. [Subtraction Property of Equality] Subtract 285 on both sides:                   ∠4 = 75
5 0
3 years ago
A six-sided number cube labeled 1 through 6 is rolled 500 times. An odd number is rolled 325 times. Compare the experimental pro
Komok [63]
The actual probability of having odd is 3/6=1/2
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so answer is B !
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5 0
3 years ago
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Ivanshal [37]

Answer:

I don't know..............

8 0
3 years ago
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Please help me please!!​
irakobra [83]

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mok

Step-by-step explanation:

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7 0
3 years ago
Mario has drawn a plan of his bedroom on 1 cm square paper. His en-suite shower cubicle measure. 1m x1m, give the scale of his d
Romashka [77]
<span>Mario has drawn a plan of his bedroom on 1 cm square paper. His en-suite shower cubicle measure. 1m x1m, give the scale of his drawing
as ratio _ 1 cm__ : __1m_.
What are the actual dimension of his bed __1__ m x _1_ m</span>
4 0
3 years ago
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