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kari74 [83]
3 years ago
6

The probability distribution histogram shows the number of days a book is checked out of a library. Find P(3 ≤ X < 12)

Mathematics
1 answer:
grin007 [14]3 years ago
4 0
0.4 is your answer your welcome
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Helppp I will make you a brainlist!! <br><br> A=[4 6 5 ] , then what is 2A? <br> 6 10 7
KATRIN_1 [288]

Answer:

  • So we have a matrix
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3 years ago
Janelle has 4 hours to spend training for an upcoming race. She completes her training by running full speed the distance of the
natima [27]
If the amount of time taken to go said distance is x and the amount of time taken to go back said distance is y, then the amount of miles total is 7x+3y due to that for every hour, she adds 7 miles when going there and 3 miles for walking back. In addition, since the total amount of time is 4 hours, x+y=4 as the total time spent as well as 7x=3y due to that they're the same distance. 
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Dividing the second equation by 7, we get x=3y/7. Plugging that into the first equation, we get 3y/7+y=4=10y/7 (since y=7y/7). Multiplying both sides by 7 and then dividing both by 10, we get 28/10=2.8=y in hours. Since 0.1 hours is 60/10=6 minutes, and 0.8/0.1=8, 6*8=48 minutes=0.8 hours, meaning that she should plan to spend 2 hours and 48 minutes walking back 

8 0
3 years ago
What is the y value of the solution to the system of equations shown below y = 22 - 6 y = 50 – 21​
zhannawk [14.2K]

Answer:

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-6y=29-22

-6y=7

y=-7/6

3 0
2 years ago
Find x in the proportion x:6= 25:5​
Andrews [41]

Step-by-step explanation:

\frac{x}{6}  =  \frac{25}{5}  \\

\frac{x}{6}  =  \frac{5}{1}  \\

x = 30

5 0
3 years ago
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formula is 6a²= surface area

but since one side is not being painted it is

5a²= surface area

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=51.2cm

8 0
3 years ago
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