Ask question

Ask question

All categories

3 years ago

9

45 workers can complete a piece of work in 12 days.how many workers should be removed so that it takes 6 more days to complete t

he work

1 answer:

n200080 [17]3 years ago

3 0

Answer:

90000

Step-by-step explanation:

You might be interested in

Please help on this one

olya-2409 [2.1K]

Ok jet the inverse is jut the function backwards,like a reciprocal.

So it should be D. (83,47)

Hope I could help you

4 0

3 years ago

What is the answer to (−6)2

xxMikexx [17]

Hi!
The answer is -12.

8 0

3 years ago

The length of the rectangular field is two times its breadth. If the perimeter of the field is 300m, find the length and breadth

Aleonysh [2.5K]

Answer:

Youu can call the breadth x and then, as the length is two times the breadth, it would be 2x.

So now when we call x to the breadth and 2x to the length we can do an equation, as we know the sum of the four sides is 300 meters, so

2x + 2x + x + x = 300

6x = 300

x = 300/6 = 50

We know that the breadth is 50m, and, the length, which is twice the breadth, would be 100m in this exercise.

SO in this case, the breadth is 50 meters and the length is 100 meters..

6 0

3 years ago

In an arithmetic sequence, the sum of the 3rd and 8th term is 1. Given that the sum of the first seven terms is 35, determine th

Ann [662]

Answer:

<h3> first term: <u>a₁ = 14</u></h3><h3> the common difference: <u>d = -3</u></h3>

Step-by-step explanation:

The sum of the 3rd and 8th term is:

$a_3+a_8=1\\\\a_1+2d+a_1+7d=1\\\\\underline{2a_1+9d=1}$

The sum of the first seven terms is 35:

$S_7=35\\\\\dfrac{a_1+a_7}2\cdot7=35\\{}\qquad\quad^{\div7\qquad\div7}\\ \dfrac{a_1+a_1+d}2=5\\{}\qquad\qquad^{\cdot2\qquad\cdot2}\\2a_1+6d=10\\{}\qquad\ ^{\div2\qquad\div2}\\a_1+3d=5\\{}\quad\ ^{-3d\quad\ -3d}\\a_1=5-3d$

$2a_1+9d=1\\\\2(5-3d)+9d=1\\\\10-6d+9d=1\\{}\qquad\qquad^{-10\quad-10}\\{}\qquad3d=-9\\{}\qquad^{\div3\qquad\div3}\\{}\qquad d=-3\\\\\\a_1=5-3(-3)=5+9=14$

4 0

3 years ago

What is the solution to the system?

timofeeve [1]

Answer:

(-1,-4)

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers