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ser-zykov [4K]
4 years ago
13

Two workers, if they were working together, could finish a certain job in 12 days. If one of the workers does the first half of

the job and then the other one does the second half, the job will take them 25 days. How long would it take each worker to do the entire job by himself?
Mathematics
2 answers:
SIZIF [17.4K]4 years ago
4 0

Answer:

It would be 20 and 30 days respectively.

Hope this helps. :-)

Oksi-84 [34.3K]4 years ago
3 0

it would take 20 and 30 days.

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An integer is 3 less than 5 times together. If the product of the two integers is 36, then find the integers
saw5 [17]

Step-by-step explanation:

An integer is 3 less than 5 times another. If the product of the two integers is 36, then the integers are: 3 and 12. Solution: x * (5x 3) 36; 5x2 - 3x = 36; 5x2 -3x 36 = 0; (5x + 12)(x - 3) = 0; x = -12/5 or x =3.

6 0
3 years ago
Express in simplest form : cubed root of a^6b^9/-64. Show work
Umnica [9.8K]
The answer is  \frac{ a^{2} b^{3} }{-4}

\sqrt[3]{ \frac{ a^{6} b^{9}  }{-64} } = \frac{ \sqrt[3]{a^{6} b^{9}} }{  \sqrt[3]{-64}  } = \frac{ \sqrt[3]{a^{6}} * \sqrt[3]{ b^{9}} }{  \sqrt[3]{-64}}
Since (xᵃ)ᵇ = xᵃ*ᵇ, then:
a⁶ = (a²)³
b⁹ = (b³)³
Also: 64 = 4³
\frac{ \sqrt[3]{a^{6}} * \sqrt[3]{ b^{9}} }{ \sqrt[3]{-64}}= \frac{ \sqrt[3]{( a^{2})^{3} }*\sqrt[3]{( b^{3})^{3} } }{\sqrt[3]{( -4)^{3} }} = \frac{ a^{2} * b^{3} }{-4}
5 0
3 years ago
3x+8=15 find try the value of x
dimaraw [331]

Answer:

x = 7/3

Step-by-step explanation:

To find the of x, isolate it from the other numbers (moving everything to the other side)

What you do to one side, you must do to the other:

3x + 8 = 15

3x + 8 - 8 = 15 - 8  (subtract 8 on both sides to rid of the "+ 8")

3x = 7

3x/3 = 7/3   (divide by 3 on both sides to rid of the 3 attached to "x")

x = 7/3

6 0
3 years ago
Read 2 more answers
Please answer the middle
alukav5142 [94]

Table-1 shows constant increase of X and Y values

Step-by-step explanation:

We are given two tables with X and Y values.

To find which table represent the constant increase of X and Y:

If there is constant increase of X and Y then, X and Y avlues belongs to equation of line.

Also, if three points lies on line then, slope of line made by three points must be same or equal.

Slope of line is given as s=\frac{Y2-Y1}{X2-X1}

For table 1:

The values of X and Y form points as A(3,4),B(5,6) and C(7.8)

For A(3,4) and B(5,6)

s=\frac{6-4}{5-3}

s=\frac{2}{2}

s=1

For C(7.8) and B(5,6)

s=\frac{6-8}{5-7}

s=\frac{-2}{-2}

s=1

Therefore, Table-1 shows constant increase of X and Y values

For table 2:

The values of X and Y form points as A(1,3),B(2,6) and C(3,10)

For A(1,3) and B(2,6)

s=\frac{6-3}{2-1}

s=\frac{3}{1}

s=3

ForC(3,10) and B(5,6)

s=\frac{6-10}{5-3}

s=\frac{-4}{-2}

s=2

Therefore, Table-1 does not shows constant increase of X and Y values

5 0
3 years ago
How to solve 14x -2x + 3 = 3 (5x + 9)
LiRa [457]

Answer:

x=-8

Step-by-step explanation:

14x -2x + 3 = 3 (5x + 9)

12x+3=15x+27

12x=15x+24

-3x=24

x=-8

4 0
3 years ago
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