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dezoksy [38]
3 years ago
12

Hitomi has a bag with four chips in it numbered 1 to 4. SHe randomly draws a chip and replaces it three times. What is the proba

bility that Hitomi will draw a 1 all three times?
Mathematics
2 answers:
enyata [817]3 years ago
7 0
25%

1/4= 25/100

25 divided by 100 is 0.25 which is equal to %25
andrew11 [14]3 years ago
4 0
The probability that she will draw the 1 the first time = 1/4 .

The probability that she will draw the 1 the second time = 1/4 .

The probability that she will draw the 1 the third time = 1/4 .

The probability of all three events happening is

               (1/4) · (1/4) · (1/4)  =   (1/4³)  =  1/64

         or   (0.25)³  =  0.015625  =  1.5625%

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Gianna is preparing for the upcoming tennis season. According to her schedule, she can complete at most 10 workouts this week. I
Fantom [35]
For this case we have the following variables:
 x = the number of drill-based workouts
 y = the number of conditioning workouts
 The system of equations that adapts to the situation is:
 "According to her schedule, she can complete at most 10 workouts this week":
 x + y <= 10
 "It takes Gianna 45 minutes to complete her drill-based workouts and 30 minutes to complete her conditioning workouts. She is required to spend more than 450 minutes on workouts every week"
 45x + 30y> 450
 Answer:
 
A system of inequalities can that be used is:
 
x + y <= 10
 
45x + 30y> 450
5 0
3 years ago
Read 2 more answers
Express in the form n : 1 . Give n as a decimal. 6 : 8
Rzqust [24]

Step-by-step explanation:

1.n:1

6:8

2.cross multiply

3.8×n÷6×1

8n=6

4 divide both side by 6

=8n÷6=6÷6 :

=8n÷6=1.33...

therefore n=1.33...

6 0
2 years ago
01:37:06
Andrej [43]

Answer:

3x - 4y = -4

Step-by-step explanation:

When you put co-ordinate in it then give zero

3(-4)-4(-2)+3=0

5 0
3 years ago
What is 50 - ? = 30
timurjin [86]
Taking 20 away from 50 will result in 30
4 0
3 years ago
Read 2 more answers
At imelda's fruit stand, you bought 555 apples and 444 oranges for \$10$10dollar sign, 10, and your friend bought 555 apples and
MaRussiya [10]

Answer:

Each apple costs $1.20 and each orange costs $1.

Step-by-step explanation:

Let x represent the number of apples and y represent the number of oranges.

For the fruit you bought, 5 apples and 4 oranges, we have 5x+4y.  This costs $10.  This gives us the equation

5x+4y = 10

For the fruit your friend bought, 5 apples and 5 oranges, we have 5x+5y.  This costs $11.  This gives us the equation

5x+5y = 11

Together we have the system

\left \{ {{5x+4y=10} \atop {5x+5y=11}} \right.

We will eliminate x by subtracting the bottom equation from the top:

\left \{ {{5x+4y=10} \atop {-(5x+5y=11)}} \right. \\\\-1y = -1

Divide both sides by -1:

-1y/-1 = -1/-1

y = 1

Each orange costs $1.

Substitute this into the first equation:

5x+4(1) = 10

5x+4 = 10

Subtract 4 from each side:

5x+4-4 = 10-4

5x = 6

Divide both sides by 5:

5x/5 = 6/5

x = 1.2

Each apple costs $1.20.

7 0
3 years ago
Read 2 more answers
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