Asked by Idkhowtodomath
I really dk how to do them,only 2 questions pls anyone help thanks
17)The number of hours N required to dig a certain hole is inversely proportional too the number of men available X.When 6 men are digging, the hole takes 4 hours.Find the time taken when 8 men are available.If it takes 1/2 hour to dig a hole, how many men are there?
19)The force of attraction F between 2 magnets varies inversely as the square of the distance d between them. When the magnets are 2cm apart, the force of attraction is 18 newtons.How far apart are they if the attractive force is 2 newtons?
17)The number of hours N required to dig a certain hole is inversely proportional too the number of men available X.When 6 men are digging, the hole takes 4 hours.Find the time taken when 8 men are available.If it takes 1/2 hour to dig a hole, how many men are there?
19)The force of attraction F between 2 magnets varies inversely as the square of the distance d between them. When the magnets are 2cm apart, the force of attraction is 18 newtons.How far apart are they if the attractive force is 2 newtons?
Answers
Answered by
oobleck
nx = k, a constant
So, you want to find x such that
8x = 6*4
Fd^2 = k
You want d such that
2d^2 = 18*2^2
So, you want to find x such that
8x = 6*4
Fd^2 = k
You want d such that
2d^2 = 18*2^2
Answered by
Idkhowtodomath
Omg thank you so much Mr/Ms oobleck for the steps
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