Literal Equations - Practice #2 (Grade 9)

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Literal Equations - Practice #2

Instructions: Assume all variables are not equal to zero.

1. 
Solve for [math]b[/math].
[math]-r= sb[/math]
  1. [math]-r/s[/math]
  2. [math]-rs[/math]
  3. [math]-r + s[/math]
  4. [math]s-(-r)[/math]
2. 
Solve the formula [math](PV)/T=k[/math] for [math]V[/math].
  1. [math](Pk)/T=V[/math]
  2. [math]PTk=V[/math]
  3. [math]k/(PT)=V[/math]
  4. [math](kT)/P=V[/math]
  5. [math](k-T)/P=V[/math]
3. 
Solve the following formula for [math]w[/math].

[math]V=lwh[/math]
  1. [math]w=Vlh[/math]
  2. [math]w=l/(Vh)[/math]
  3. [math]w=V/(lh)[/math]
  4. [math]w=V+l+h[/math]
4. 
Given [math]P=2(l+w)[/math], solve for [math]l[/math].
  1. [math]l = 2P+w[/math]
  2. [math]l = P/2+w[/math]
  3. [math]l=P/2-w[/math]
  4. [math]l=(w-P)/2[/math]
5. 
Given [math]V = pir^2h[/math], solve for [math]h[/math].
  1. [math]h = V/(pir)[/math]
  2. [math]h = V/(pir^2)[/math]
  3. [math]h=sqrt(V/(pir))[/math]
  4. [math]h=sqrt(V/(pir^2))[/math]
6. 
Solve for [math]s. -6 = t+5s[/math]
  1. [math]s = -6-t-5[/math]
  2. [math]s = (-6-t)/5[/math]
  3. [math]s = (6+t)/5[/math]
  4. [math]s = -6-5t[/math]
7. 
Solve for [math]y[/math].
[math]ay-xy=z[/math]
  1. [math]z/(ay-x)[/math]
  2. [math]2y[/math]
  3. [math]z(a-x)[/math]
  4. [math]z/(a-x)[/math]
8. 
Given [math]A =P+Prt[/math], solve for [math]P[/math].
  1. [math]P = (A - P)/(rt)[/math]
  2. [math]P = A/(1+rt)[/math]
  3. [math]P=A/(rt)[/math]
  4. [math]P=A/(1-t)[/math]
9. 
Given [math]A = 1/2(b_1+b_2)h[/math], solve for [math]b_1[/math].
  1. [math]b_1=A/(2h)-b_2[/math]
  2. [math]b_1=(2A)/h-b_2[/math]
  3. Both a and b are correct
  4. None of these are correct
10. 
Given [math]A = pir^2[/math], solve for [math]r[/math].
  1. [math]r = A/pi[/math]
  2. [math]r = +-sqrt(A/pi)[/math]
  3. [math]r = -sqrt(A/pi)[/math]
  4. [math]r = sqrt(A/pi)[/math]

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