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5 votes
5 votes
I neeed help again:( pweaseee help

I neeed help again:( pweaseee help-example-1
User Shorpy
by
2.3k points

1 Answer

15 votes
15 votes

Answer:


a) n =(c)/(d)\\\\\\b) b= 2A -a\\\\c) m_1=(Fr^2)/(Gm_2)

d) z = 10

Explanation:

Solve for the given variable:

a)


\sf d = (c)/(n)\\\\\text{Mulitply the entire equation by 'n',}\\\\n*d=n*(c)/(n)\\\\nd =c\\\\\text{Now, divide the entire equation by 'd',}\\\\n =(c)/(d)

b)


\sf A = (a+b)/(2)\\\\\text{Multiply the entire equation by 2,}\\\\2*A = 2*(a+b)/(2)\\\\2A = a+b\\\\\text{Now subtract 'a' from both sides,}\\\\2A - a = b\\\\\boxed{b=2A - a}

c)


\sf F =(Gm_1m_2)/(r^2)

Multiply the entire equation by r²,


\sf Fr^2=r^2*(Gm_1m_2)/(r^3)\\\\Fr^2=Gm_1m_2

Divide the entire equation by Gm₂,


\sf (Fr^2)/(Gm_2)=m_1\\\\\boxed{m_1=(Fr^2)/(Gm_2)}

D) A = 7 ; y =4

Substitute in the equation and find the other number.


\sf A = (1)/(2)(y+z)\\\\7=(1)/(2)(4+z)\\\\Multiply \ both \ sides \ by 2,\\\\7*2 = 4 +z

14 = 4 + z

Subtract 4 from both sides,

14 - 4 = z

z = 10

User Alex Witsil
by
3.5k points
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