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3 years ago

Probability of Mary winning the game is 4/15 What is the odds in favor of Mary winning the game?

Mathematics

1 answer:

My name is Ann [436]3 years ago

3 0

Step-by-step explanation:

Probability (P) = 4/15

Formula

Odds = P/(1-P)

1- P = 1- 4/15

= 11/15

Odds = (4/15)/(11/15)

= (4/15)(15/11)

=4/11

Odds in favour of Mary winning is 4/11

Hope it helps...

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Skylar spent $90.65 on books that cost $12.95 each. How many books did Skylar buy?

Lesechka [4]

Divide 90.65 by 12.95
90.65/12.95 = 7 books

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Plz give 8th and 9th question

Neko [114]

Answer:

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Step-by-step explanation:

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3 years ago

Evaluate the polynomial when a.x=0 and b.x=-1 x2 – 3x - 7

Arlecino [84]

Answer:

a) -7 & b) -6

Step-by-step explanation:

Here,

a) x = 0

Solution ↦

$x2 - 3x - 7 \\ = 0 \times 2 - 3 \times 0 - 7 \\ = - 7$

b) x = -1

Solution ↦

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3 years ago

Just number 7 would be fine but if you could also number 8 would help a lot

BlackZzzverrR [31]

Answer:

7. r = -5

8. x = -1

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

r + 2 - 8r = -3 - 8r

Step 2: Solve for r

Combine like terms: -7r + 2 = -3 - 8r
Add 8r to both sides: r + 2 = -3
Subtract 2 on both sides: r = -5

Step 3: Check

Plug in r into the original equation to verify it's a solution.

Substitute in r: -5 + 2 - 8(-5) = -3 - 8(-5)
Multiply: -5 + 2 + 40 = -3 + 40
Add: -3 + 40 = -3 + 40
Add: 37 = 37

Here we see that 37 does indeed equal 37.

∴ r = -5 is a solution of the equation.

Step 4: Define equation

-4x = x + 5

Step 5: Solve for x

Subtract x on both sides: -5x = 5
Divide -5 on both sides: x = -1

Step 6: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x: -4(-1) = -1 + 5
Multiply: 4 = -1 + 5
Add: 4 = 4

Here we see that 4 does indeed equal 4.

∴ x = -1 is a solution of the equation.

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