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aleksandrvk [35]
3 years ago
8

Lou has the first 4 encyclopedias lined up on a shelf, A, B, C, and D. If he picks two at random, what is the probability that h

e picks A first and B second?
Mathematics
1 answer:
sweet [91]3 years ago
5 0

Answer:

6.25%

Step-by-step explanation:

The probability of choosing A the first time is 25%

The probability of choosing B the second time reduces to 6.25% because the odds are reduced since you need 2 variables instead of 1

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Commutative vs associative property
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Commutative is where you are able to move around the numbers to make it easier to add, subtract, divide, or multiply. Associative is where you can put parenthesis around any numbers and add, subtract, ect. 
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4 years ago
A restaurant sells refill cup for $7.75.Each refill cost $1.25.last month,Roger spent $32.75 on a cup and refill.whoch equation
Bess [88]
7.75+1.25x= 32.75
32.75-7.75=25
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3 years ago
Employees at The Shoe Shack get a 25% discount when they buy a pair of shoes at the store.
yaroslaw [1]

Answer: Theo bought a pair of shoe for 36$

Step-by-step explanation:

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Help on this please?
Anna [14]

Answer:

angle 1 should equal to 54.

angle 2 should equal to 126.

Step-by-step explanation:

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2x + 4x - 8 + 2 = 180

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6x - 6 + 6 = 180 + 6

6x = 186

6x ÷ 6 = 186 ÷ 6

x = 31

---------------------------------------------

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54 = A1

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124 + 2 = A2

126 = A2

7 0
3 years ago
The sum of the digits of a certain two-digit number is 15. Reversing its digits increase the number by 9. find the number
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Answer:

12

Step-by-step explanation:

8 0
4 years ago
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