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Oksi-84 [34.3K]
3 years ago
7

Pls solve it as quick as you can​

Mathematics
2 answers:
Alecsey [184]3 years ago
7 0

Answer:

D

Step-by-step explanation:

Mashcka [7]3 years ago
3 0

Answer: the answer is D hope this helps! Plz mark me as brainliest!

Step-by-step explanation:

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n an amusement park, the bumper cars are sometimes becoming disabled and in need of repair. The repairman can fix the disabled b
grigory [225]

Answer:

1 hour 20 minutes

Step-by-step explanation:

Time to fix car ( repair time ) = 20 minutes

Breakdown rate ( λ )  = 2 car per hour

<u>first step : determine service the service rate ( μ )</u>

= 60 minutes / 20 minutes

= 3 cars per hour

<u>next : determine the average waiting time for a disabled car </u>

=  1 / (μ - λ)

= 1 / service rate - breakdown rate

= 1 / ( 3 - 2 )

= 1 / 1 =  1 hour

Finally Total time for a disabled car to be fixed

= repair time + average waiting time

= 20 minutes + 60 minutes

= 1 hour 20 minutes

6 0
3 years ago
Use the formula
natita [175]
A=bh
108=<span>12*h
9in=h
The height is 9 inches.</span>
8 0
3 years ago
What is the function notation of h(x)={x-3}+1 if h(-5)
galben [10]

Answer:

-7

Step-by-step explanation:

h(x)={x-3}+1 if h(-5)

When h(-5) = {-5-3}+1 ={-8}+1= -8+1=-7

8 0
4 years ago
What two integers have a product of -20 and a sum of -8
Rufina [12.5K]
-10 and 2
-10 x 2 = -20
-10 + 2 = -8
7 0
3 years ago
Read 2 more answers
Simplify: 121/11 + 3(4)/2<br> Please and thank you. :)
slamgirl [31]

Answer:

17

Step-by-step explanation:

I don't know the explanation, but hoped this helped.

8 0
3 years ago
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