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Yanka [14]
3 years ago
10

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. Find the probabi

lity that a worker selected at random makes between $250 and $300.

Mathematics
2 answers:
asambeis [7]3 years ago
8 0

Answer:

0.3413

Step-by-step explanation: Hope this helps :)

S_A_V [24]3 years ago
3 0

Answer: 2.35

Step-by-step explanation:

Hope this helps!

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valentina_108 [34]
It’s -37! | this means the opposite of the number ;)
6 0
2 years ago
Leila's father used six-tenths of a full tank of gasoline on their trip. Nine gallons were used.
Bad White [126]

Answer:

15

Step-by-step explanation:

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5 0
3 years ago
you work from 7:00 am to 11:00 am and from 12:00pm to 4:00 pm. your hourly rate is $7.50. You do not work overtime. Find the hou
Viktor [21]

Answer:

Worked 40 hrs in week

Pay $300 for week

Step-by-step explanation:

Hours: 7-11a.m = 4

12-4p.m = 4 So, 4+4=8 hrs per day

So, 8 hrs per day × 5 days a week (8×5)=40

Worked 40 hrs in week

Pay: $7.50/hr So, $7.50×40 hrs (7.50×40)=300

So, $300 pay for week

7 0
3 years ago
A security guard uses 20 minutes of every hour to walk outside the school, leaving the remaining
Troyanec [42]

Answer:

40/20, 40:20, 40 to 20

Step-by-step explanation:

20min/1hr

40min/1hr

Question order asks ratio from outside time to inside time so the 40 would come first. also, all the above are correct. You can write a ratio as a fraction, with a colon, or with the word to.

6 0
3 years ago
Shilpa can stitch a shirt in 5 hours while Alka can do it in 4 hours how much time would it take to stitch 36 shirts if they wor
scoundrel [369]

Answer:

together, they would stitch 36 shirts in 162 hours or 6 days and 18 hours

8 0
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