Ask question

Ask question

All categories

3 years ago

13

A class contains 3 female and 9 male students. Find the probability that a student chosen at random is a male, and then a second

student chosen at random from the remaining students is also male.
a). 9/16
b). none
c). 1/2
d).6/11
e).3/4
HELPP today plzzz!!!

1 answer:

sammy [17]3 years ago

8 0

9 +3 = 12 students

9 are male
1st = 9/12 = 3/4
2nd = 8/11

3/4 * 8/11 = 6/11

Answer = D) 6/11

You might be interested in

What percent of 128 is 32

bija089 [108]

We can set up a proportion.

32/128 = x/100

32 * 100 = 3200
128 * x = 128x.

Now we have 128x = 3200.

All we need to do is divide 3200 by 128, so 3200 / 128 = 25, so your answer is 25%.

8 0

2 years ago

a village having a population of 4000, requires 150 litres of water per head per day. it has a tank measuring 20m x 15m x 6m. fo

allochka39001 [22]

The water will last for 3 days

<em><u>Solution:</u></em>

Given that, village having a population of 4000, requires 150 litres of water per head per day

<em><u>Let us first find the volume of tank</u></em>

The tank measuring 20m x 15m x 6m

Length = 20 m

Breadth = 15 m

Height = 6 m

$volume\ of\ tank = length \times breadth \times height$

$Volume\ of\ tank = 20 \times 15 \times 6 = 1800$

Thus volume of tank is 1800 cubic meter

From given,

Water required per person per day = 150 liters

<em><u>Therefore, water required for 4000 people per day is:</u></em>

$\rightarrow 4000 \times 150 = 600000 \text{ liters }$

Convert to meters

$600000 \text{ liters } = 600000 \times \frac{1}{1000}\ m^3\\\\600000 \text{ liters } = 600\ m^3$

<em><u>How many days will the water of this tank last?</u></em>

$\text{Number of days water will last } = \frac{\text{volume of tank}}{\text{total water required per day}}$

$\text{Number of days water will last } = \frac{1800}{600} = 3$

Thus the water will last for 3 days

5 0

3 years ago

If the diameter of a circle is 36 centimeters, the radius is___<br> centimeters

Diano4ka-milaya [45]

Answer: 18

Explanation: Divide the diameter by 2.

6 0

2 years ago

Read 2 more answers

Gahh help me out please??? Answer both tysm enjoy your day/night! (I will have about 60 points after. if I ace this test. Everyo

musickatia [10]

Answer:

question 14 should be B and 10 is also B

7 0

3 years ago

Find the distance between the pair of points.(-6, -20) and (-17, -22)

topjm [15]

Answer:

Use the distance formula to determine the distance between two points.

5 √ 5

8 0

3 years ago