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Oxana [17]
4 years ago
9

two men working together can complete a job in 1 hour 20 minutes. the first man working alone can complete the task in two hours

. how long will it take the second man to finish the job if he worked alone

Mathematics
1 answer:
lana [24]4 years ago
6 0

Answer:

Second Man = (2 Hours * 1.3333 Hours) / (2 Hours - 1.3333 Hours)

Second Man = (2.6666666667 ) / (.666666667)

Second Man (when working alone) =  4 Hours


Step-by-step explanation:


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A box of donuts containing 6 maple bars, 3 chocolate donuts, and 3 custard filled donuts is sitting on a counter in a work offic
Svetlanka [38]

Probabilities are used to determine the chances of selecting a kind of donut from the box.

The probability that Warren eats a chocolate donut, and then a custard filled donut is 0.068

The given parameters are:

\mathbf{Bars = 6}

\mathbf{Chocolate = 3}

\mathbf{Custard= 3}

The total number of donuts in the box is:

\mathbf{Total= 6 + 3 + 3}

\mathbf{Total= 12}

The probability of eating a chocolate donut, and then a custard filled donut is calculated using:

\mathbf{Pr = \frac{Chocolate}{Total}\times \frac{Custard}{Total-1}}

So, we have:

\mathbf{Pr = \frac{3}{12}\times \frac{3}{12-1}}

Simplify

\mathbf{Pr = \frac{3}{12}\times \frac{3}{11}}

Multiply

\mathbf{Pr = \frac{9}{132}}

Divide

\mathbf{Pr = 0.068}

Hence, the probability that Warren eats a chocolate donut, and then a custard filled donut is approximately 0.068

Read more about probabilities at:

brainly.com/question/9000575

7 0
3 years ago
The sum of Sharon's and John's ages is . Sharon is times as old as John. If you let Sharon's age and John's age, then the proble
il63 [147K]

Answer:

A

Step-by-step explanation:

Im pretty sure its A because

55ish plus 15ish equals 70 which is their ages combined

55-60 is also 4 x 15  

6 0
3 years ago
Did I get this correct? If not please help me!!!
OLga [1]

Answer:

I thinck u did get it write ....

Step-by-step explanation:

7 0
3 years ago
Y varies inversely to x. If y = 7 when x = -4, what is y when x =5 ?
djverab [1.8K]

Answer:

Step-by-step explanation:

y*1/x

y=k/x where k is the constant of variation

when y=7, x=-4

7=k/-4

k=-28

when x=5

y=-28/5

note: * is used as symbol of variation

7 0
4 years ago
This does not make sense even when I put 4321 it still did not work
ella [17]

Answer:

Maybe you should refresh your page if you can.

3 0
3 years ago
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