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murzikaleks [220]
3 years ago
5

three postal workers can sort a stack of mail in 30 minutes, 30 minutes, and 60 minutes, respectively. find how long it takes th

em to sort the mail if all three work together.
Mathematics
2 answers:
mote1985 [20]3 years ago
8 0

Answer:

Step-by-step explanation:

t/30+t/30+t/60=1

2t/60+2t/60+t/60=1

5t/60=1

5t=60

t=12 minutes

OverLord2011 [107]3 years ago
5 0

Answer:

it will take about 1/3 of the time (10 minutes)

Step-by-step explanation:

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Denver has a current temperature of -5°, while Barcelona has a current temperature of 54°. What is the difference in temperature
irga5000 [103]

Answer:

59°

Step-by-step explanation:

Difference=54-(-5)

=54+5=59

7 0
2 years ago
Help if you know how to do this- brainliestt
Gwar [14]

Answer:

95.5°F

Step-by-step explanation:

Given the regression equation :

y = 1.8x - 76.9 ; the relationship between temperature (°F) and number of ice cream sold

y = number of ice cream sold

x = temperature (°F)

The temperature when 95 iccream cones are sold will be ;

Here, y = 95

Using the model :

95 = 1.8x - 76.9

95 + 76.9 = 1.8x

171.9 = 1.8x

Divide both sides by 1.8

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95.5°F = x

Hence, temperature when 95 cones of ice-cream are sold is 95.5°F

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2 years ago
Brainiest to whoever right
Anna35 [415]

Answer:

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M(4,6) =(x,y)

A(-2,-1)=(x1 ,y1)

B( _, _ )=(x2,y2)

Now using mid point formula,

x=x1×x2÷2 y=y1+y2÷2

so, point B is (10,13)

6 0
2 years ago
What is the slip of the line shown below ? <br><br> A - 11/4 <br> B- 4/11<br> C- -4/11<br> D- 11/4
RUDIKE [14]
The picture is blurry
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3 years ago
The quotient of 50 and n
omeli [17]

Answer:

D is the answers for the question

Step-by-step explanation:

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