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dybincka [34]
3 years ago
15

James can finish a job in 1.5 hours. Jane can finish the same job in one hour. How long will it take them to finish this job if

they work together?
Mathematics
2 answers:
riadik2000 [5.3K]3 years ago
8 0

Answer:

36 minutes

Step-by-step explanation:

thank me later

aleksandrvk [35]3 years ago
7 0
It will take an hour and 15 minutes
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Factor 2x^2 + 8x + 6<br><br> Thank You
vampirchik [111]
Factored form: 2(x^2 + 4x + 3)
3 0
3 years ago
Can someone please help me with this?
lutik1710 [3]

Answer:

(-78/29, -619/29)

Step-by-step explanation:

Since both equations are equal to y we can set them equal to each other

15x+19 = 1/2x - 20

Subtract 1/2x from each side

15x -1/2x +19 = -20

Subtract 19 from each side

14 1/2 x +19-19 = -20-19

Changing to an improper fraction

29/2 x = -38

Multiply each side by 2/29

x = 2/29 * -38

x = -78/29

Now find y

y = 1/2x - 20

y = 1/2 (-78/29) -20

y = -39/29 - 20

Get a common denominator

 =-39/20 - 580/29

 = -619/29

  -39/29 -580/29

8 0
3 years ago
Please help me !!!!!!
irinina [24]

Answer:

Use a cauculator :D

4 0
2 years ago
PLEASE HELP YOU CAN HAVE BRAINLIEST!!!
Katen [24]

Answer: 4

Step-by-step explanation:

6 0
2 years ago
My statistics book says there are 8 degrees of freedom for this data set. I don't understand how they got that number. # of Book
Sedaia [141]

Answer:

It's a bit unclear with the table this way, but I count fifteen points, fifteen lines of the table, each a pair of numbers.

That's 15 degrees of freedom in the data.   When modeling, each parameter in the model uses up one degree of freedom, so you'd use a smaller number of degrees of freedom when calculating t statistics, etc.

6 0
3 years ago
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