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PilotLPTM [1.2K]
2 years ago
15

A standard deck of cards is made up of four suits: diamonds, spades, hearts, and clubs. What is the probability that you draw a

diamond or spade from a standard deck of cards?
A)
1
8


B)
1
4


C)
1
2


D)
2
3
Mathematics
1 answer:
Oksi-84 [34.3K]2 years ago
3 0

Answer:

1/2, because there's 4 suits, and so the probability of choosing 2 is 1/2.

Step-by-step explanation:

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Answer:

x = 10/3 , y = 0

Step-by-step explanation:

Solve the following system:

{4.5 x - 2 y = 15

3 x - y = 10

In the first equation, look to solve for x:

{4.5 x - 2 y = 15

3 x - y = 10

4.5 x - 2 y = (9 x)/2 - 2 y:

(9 x)/2 - 2 y = 15

Add 2 y to both sides:

{(9 x)/2 = 2 y + 15

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Multiply both sides by 2/9:

{x = (4 y)/9 + 10/3

3 x - y = 10

Substitute x = (4 y)/9 + 10/3 into the second equation:

{x = (4 y)/9 + 10/3

3 ((4 y)/9 + 10/3) - y = 10

3 ((4 y)/9 + 10/3) - y = ((4 y)/3 + 10) - y = y/3 + 10:

{x = (4 y)/9 + 10/3

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In the second equation, look to solve for y:

{x = (4 y)/9 + 10/3

y/3 + 10 = 10

Subtract 10 from both sides:

{x = (4 y)/9 + 10/3

y/3 = 0

Multiply both sides by 3:

{x = (4 y)/9 + 10/3

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Substitute y = 0 into the first equation:

Answer:  {x = 10/3 , y = 0

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2 years ago
How many common fractions strictly between 0 and 1 have a denominator of at most 6 when written in lowest term
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Step-by-step explanation:

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Step-by-step explanation:

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steposvetlana [31]

Answer:

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Step-by-step explanation:

The formula for simple interest (I) in terms of principal (P), rate (R) and time (T) is given as follows;

I = P x R x T / 100         ------------- (i)

Given:

Principal (P) = Initial amount being put into the account = 10000

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