Test: Formulae - Challenging

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Question 1:   Find the value of x in the formula c=a x 2 +5 , if a=8 , c=7
x=4
x=2
x= 1 4 x= 1 4
x= 1 2 x= 1 2
Question 2:   Find the value of x in the formula t= x 3 + s 2 , if s= 1 2 , t=3 1 4
x=9
x=25
x=18
x=27
Question 3:   Rearrange the formula y= x1 5 +1 to make x a subject
x= y 5 +1
x= y1 5 +1
x=5y4
x=4y+5
Question 4:   Rearrange the formula y= x2 3 + x1 4 to make x a subject
x= 7 12 y 7 11
x=12y11
x= 3 7 y+ 4 7
x=1 5 7 y+1 4 7
Question 5:   Rearrange the formula p= qr q+s 1 to make q a subject
q= sr1 p
q= rs1 p
q= r p s p 1
q= ( r+s ) p s
Question 6:   Rearrange the formula n= 2m+s t to make m a subject
m= 2ns t
m= nts 2
m= 2nt s
m= snt 2
Question 7:   Transpose the following formula for V : u= V2 V+3
V= 3 u 2 +2 u 2 2
V= 3 u 2 u 2 3
V= 3 u 2 2 u 2 1
V= 3 u 2 +1 u 2 1
Question 8:   Transpose the following formula for x : y= 1 2 x 2 z 2 v 3
x= 1 2 y 2 v 3 z 2
x= 8 y 3 v+ z 2
x=2 y 2 z 2 v 3
x=2 y 3 v 2 + z 2
Question 9:   Rearrange the formula 1 3 px+ 2 3 qy=3qxpy to make x a subject
x= y( 2p3q ) 3p6q
x=y( 3p+2q )( p3q )
x=y( 3p2q )( 2p+3q )
x= y( 3p+2q ) p9q
Question 10:   Rearrange the formula axp=2xpa to make a a subject
a= 2xp+1 x+1
a= p( 2x+1 ) x+1
a=p( 2x1 )( x1 )
a=p( x1 )( x+1 )