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Yakvenalex [24]
3 years ago
14

two cards are selected from a standard deck of 52 playing cards. the first card is not replaced before the second card is select

ed. fine the probability of selecting a nine and then selecting a king?
Mathematics
1 answer:
MatroZZZ [7]3 years ago
7 0

Answer:

4/663

Step-by-step explanation:

(4/52)×(4/51)

= 4/663

= 0.00603

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Does anyone know the answer to the last question? :)
PIT_PIT [208]

Answer:

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6 0
3 years ago
An item was sold at a loss of 20%. Had it been sold for Rs 3000more then the profit would have been 10%. What is the cost price
vagabundo [1.1K]

Answer:

Cost Price = Rs 10000

Step-by-step explanation:

Assume:

Cost of the item = x

Item was sold at a loss of 20%:

Loss = 20% of x = 0.2x

Item sold = x - 0.2x = 0.8x

Item sold at a profit of 10%:

Profit = 10% of x = 0.1x

item sold = x + 0.1x = 1.1x

Solve:

Difference = 1.1x - 0.8x = 0.3x

0.3x = Rs 3000

x = Rs 3000 ÷ 0.3

x = Rs 10000

3 0
3 years ago
I bed help with these two
frozen [14]
Well if each band needs 15.5 inches and she needs to make 12 headbands she needs 15.5 inches 12 times. Now you can add 15.5 + 15.5 +15.5 (so on) 12 times or you can do it the easier way and do 15.5 times 12. this comes out to 186 inches of ribbon. She estimated 160 inches of ribbon, this is unreasonable because it is significantly less that 186. 
5 0
3 years ago
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[ f°g](x)<br><br> 12. f(x) = -3x<br> g(x) = 5x - 6
irinina [24]

Answer:

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Step-by-step explanation:

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4 0
1 year ago
What is the value of 100?
Nesterboy [21]

Answer:

10

Step-by-step explanation:

Means back the numbers into multiples of several small numbers

Like:; 1. We take LCM of 40

Just break into multiples of small number

40= 2×2×2×5

2. We take LCM of 50

50= 5×5×2

So LCM for 100 is 2×2×5×5

after that see the pairs in the LCM like 2×2 or 3×3 or 4×4(same numbers)

Then write the the single number in place of two multipled numbers

Like:; 2×2 is written as 2 // 3×3 is written as 3

So we can write 100 into 2×2×5×5 and then after selecting pairs (2×2)×(5×5)

write pairs in single number 2×5

And so we get 2×5=10

So we find root of 100 that is 10

8 0
3 years ago
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