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miskamm [114]
3 years ago
12

A drawer contains 3 tan sweaters and two black sweaters. You randomly choose two sweaters. What is the probability that both swe

aters are black?
Mathematics
1 answer:
sergij07 [2.7K]3 years ago
6 0
A = event that you select a black sweater
P(A) = 2/5 since there are 2 black out of 2+3 = 5 total

After you make a selection, we have the event
B = event that you select another black sweater assuming event A has happened already

P(B) = 1/4 because there's 1 black sweater left out of 5-1 = 4 left over

Multiply the probabilities
P(A and B) = P(A)*P(B)
P(A and B) = (2/5)*(1/4)
P(A and B) = 2/20
P(A and B) = 1/10

The answer as a fraction is 1/10
In decimal form, it is 0.1
As a percent, the answer is 10%
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Irri is traveling in a group of 888 cat warriors. Each cat needs 444 liters of milk per day to maintain good morale. Mirri has a
tatiyna

Answer:

3.25 days

Step-by-step explanation:

Irri is traveling in a group of 8 cat warriors. Each cat needs 4 liters of milk per day to maintain good morale.

The total number of liters for the cat is calculated as:

8 × 4 liters of milk

= 32 liters of milk.

Another cat has enough milk to last for 2days.

= 4 liters of milk × 2 days

= 8 liters

Mirri has a supply of 96 liters of milk.

Total liters of milk = 96 liters + 8 liters

= 104 liters

Which equation can we use to find the total number of days the milk will last?

This is calculated as:

= 104 liters/32 liters

= 3.25 days

7 0
3 years ago
95 = -5(4a+5)+10<br> multi-step equations. Solve for a
Wewaii [24]

Answer: a = 5.5

Step-by-step explanation:

95 = -20a - 25 + 10

95 = -20a - 15

-20a = 110

a = 5.5

6 0
2 years ago
According to one web page on the resale value of cars, a BMW that cost $71,000 in 2003 depreciates in value about 15% a year. Ho
rosijanka [135]
It would be 100% sure its 60.35
4 0
3 years ago
Can someone help me please
neonofarm [45]
Ok, to show that she is incorrect we can use any other number in both equations and they will not be equal.  the number she used does turn out equal but that does not mean the equations are equal.
for example
2 times 3=6
3 to the power of 2 is 9

that shows the expressions are not equal
4 0
3 years ago
20 POINTS HELPPPPPPPPPPPPPPPPPPP
Elenna [48]
The answer is B. The last too are both negative. So they are not true numbers.
8 0
3 years ago
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