If 10 men can do a piece of work in 3 days. how long will it take 5 men to do?​

Answers

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

m_ {1} * m_ {2} = - 1

then, given the following line:

6x-3y = 18\\6x-18 = 3y

\frac {6x} {3} - \frac {18} {3} = y\\y = \frac {6x} {3} - \frac {18} {3}\\y = 2x-6

so, m_ {1} = 2

we are looking for m_ {2}:

m_{2}=\frac{-1}{m_{1}}\\m_{2}=\frac{-1}{2}\\m_{2}=-\frac{1}{2}

then, the line is given by:

y = - \frac {1} {2} x + b

we find "b" replacing the given point:

8 = - \frac {1} {2} (0) + b\\8 = b

finally, the equation is:

y = - \frac {1} {2} x + 8

option c

Me it is a geometry question and you

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse

Special right triangles trig ratios and circles need i am studying for my test
6 days

I’d assume unless they get too lazy and it takes longer but by standard logic, you can assume that it’ll take 6 days for 5 people to do it


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