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Vilka [71]
3 years ago
15

0.4% of 100 Please help

Mathematics
2 answers:
NNADVOKAT [17]3 years ago
8 0
0.4% of 100 is .4.

....
mylen [45]3 years ago
6 0
0.4% of 100 is .4 whoops i thought it was 0.4 as a decimal :P
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Three cards are drawn from a standard deck of 52 cards without replacement. Find the probability that the first card is an ace,
MrRissso [65]

Answer:

4.82\cdot 10^{-4}

Step-by-step explanation:

In a deck of cart, we have:

a = 4 (aces)

t = 4 (three)

j = 4 (jacks)

And the total number of cards in the deck is

n = 52

So, the probability of drawing an ace as first cart is:

p(a)=\frac{a}{n}=\frac{4}{52}=\frac{1}{13}=0.0769

At the second drawing, the ace is not replaced within the deck. So the number of cards left in the deck is

n-1=51

Therefore, the probability of drawing a three at the 2nd draw is

p(t)=\frac{t}{n-1}=\frac{4}{51}=0.0784

Then, at the third draw, the previous 2 cards are not replaced, so there are now

n-2=50

cards in the deck. So, the probability of drawing a jack is

p(j)=\frac{j}{n-2}=\frac{4}{50}=0.08

Therefore, the total probability of drawing an ace, a three and then a jack is:

p(atj)=p(a)\cdot p(j) \cdot p(t)=0.0769\cdot 0.0784 \cdot 0.08 =4.82\cdot 10^{-4}

4 0
3 years ago
There are 28 flowers in a bouquet. 7 of the flowers are tulips. What
Semenov [28]

Answer:

25%

Step-by-step explanation:

6 0
3 years ago
2.3*10^8+4.7*10^7<br><br> Express answer in scientific notation.
juin [17]

Answer:

2.3 * 80 + 4.7 * 70

Step-by-step explanation:

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3 years ago
A salesperson sold 30% of their books in stock on Monday. Then they sold 60% of their remaining books on Tuesday. What percent o
Valentin [98]

Answer:

10%

Step-by-step explanation:

60% + 30%=90%

so they have 10%of the original amount left.

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3 years ago
How many times can 2 go into 26
Luba_88 [7]
The answer is 13. 13 times
6 0
4 years ago
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