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Ghella [55]
3 years ago
7

Fifteen new students are to be evenly distributed among three classes. Suppose that there are three whiz-kids among the fifteen.

(a) What is the probability that each class gets one? (b) one class gets them all?
Mathematics
1 answer:
dimaraw [331]3 years ago
5 0
Well 3 times what equals 15   it' 5 so the probability of it will be 5 if that makes sense

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Answer:

9

Step-by-step explanation:

x-5+7=11

First think of what +7 = 11 then subtract by 5

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3 years ago
7/8y + 1/2 = 1 1/5<br><br> Solve for y.
abruzzese [7]

Answer:

y = 4/5

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
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Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

7/8y + 1/2 = 1 1/5

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

  1. Convert to improper fraction:                                                                          7/8y + 1/2 = 6/5
  2. [Subtraction Property of Equality] Subtract 1/2 on both sides:                       7/8y = 7/10
  3. [Division Property of Equality] Divide 7/8 on both sides:                              y = 4/5
3 0
2 years ago
The population in a city was 40,000.00. The population rose p
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Answer:P+41,700

Step-by-step explanation:40000-3000=37000.

37000+4700=41,700

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