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3 years ago

What are the odds that you will pick an ace from a standard deck of 52 cards?

1 answer:

7 0

So if we have 52 cards it would be easy to check the odds with a formula, here is the procedure:
<span>P(Ace) is 4/52 = 1/13
P(Spade) is 13/52 = 1/4
P(Ace and Space) = 1/52
therefore P(Ace or Spade) = 1/13 +1/4 - 1/52 = 4/13 =</span><span>0.30769230769230769230769230769231. that is the probability</span>

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lesya692 [45]

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2 years ago

Tiffany was collecting cans for recycling. On Monday she had four bags of cans. The next day she found eight more bags worth. Ho

ss7ja [257]

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2 years ago

Ámala caught 54 fishes, she released 5/6 how many she keep

matrenka [14]

9 fish (:
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3 years ago

Read 2 more answers

6. The variable x and y vary directly, and y = 40 when x = 5. Which equation relates the variables?

valkas [14]

Answer:

The equation relates the variables is y = 8x ⇒ D

Step-by-step explanation:

If x and y vary directly (y ∝ x), then y = k x, where

k is the constant of variation

k can be found using the initial value of x and y

∵ The variable x and y vary directly

∴ y ∝ x

→ By using the rule above

∴ y = k x

∵ y = 40 when x = 5

∴ The initial values of x and y are x = 5 and y = 40

→ Substitute them in the equation above to find k

∵ 40 = k(5)

∴ 40 = 5k

→ Divide both sides by 5

∵ $\frac{40}{5}$ = $\frac{5k}{5}$

∴ 8 = k

→ Substitute the value of k in the equation above

∴ y = 8x

∴ The equation relates the variables is y = 8x

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2 years ago

Jason is traveling by car from his home to his office. He has gone 3.5 miles so far. From this point on, he can cover 100 miles

Elden [556K]

First the equation needs to be set to "y" to find the total amount of miles traveled:
y=
Then you know he has already gone 3.5, this is a constant and can be added to the graph immediately
y=3.5
Then you know every two hours he can cover 100 miles, which means 50 miles per hour or 50 per x, so add 50x to 3.5 to show that he will go 3.5 miles plus 50 miles for every hour he is traveling.
y=3.5+50x

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3 years ago