Free Printable Changing the Subject

1.

Make w the subject of the formula

$s=\frac{w}{a}$

a)

$w=\frac{s}{a}$

b)

$w=sa$

c)

$w=\frac{a}{s}$

d)

$w=s+a$

2.

$v=u+10t$ Make u the subject of the formula

a)

$u=v-10t$

b)

$u=v+10t$

c)

$u=\frac{v}{10t}$

d)

$u=\frac{v}{-10t}$

3.

$P=6x+2$ Express x in terms of P.

a)

$x=p-\frac{1}{3}$

b)

$x=\frac{p}{6}-\frac{1}{3}$

c)

$x=\frac{p}{6}+\frac{1}{3}$

d)

$x=\frac{p}{6}-2$

4.

$s=\frac{hm}{4}$ Make m the subject of the formula

a)

$m=\frac{4s}{h}$

b)

$m=\frac{sh}{4}$

c)

$m=\frac{h}{4s}$

d)

$m=\frac{s}{4h}$

5.

Express v in terms of t

$t=\frac{v}{4}+1$

a)

$v=4\left(t-1\right)$

b)

$v=4\left(t+1\right)$

c)

$v=4t-1$

d)

$v=4t+1$

6.

$c=\sqrt{d}+2$ Make d the subject of the formula

a)

$d=\left(c-2\right)^2$

b)

$d=\left(c+2\right)^2$

c)

$d=c^2-2$

d)

$d=c^2+2$

7.

Make b the subject of the formula

$a^2+b^2=c^2$

a)

$b=\sqrt{c^2-a^2}$

b)

$b=\sqrt{a^2-c^2}$

c)

$b=\sqrt{c^2+a^2}$

d)

$b=\sqrt{a^2+c^2}$

8.

Make w the subject of the formula

$y=3w-a$

a)

$w=\frac{y}{3}+a$

b)

$w=y+\frac{a}{3}$

c)

$w=\frac{y+a}{3}$

d)

$w=\frac{y-a}{3}$

9.

$ax+r\ =\ 7\ \ Solve\ for\ r.$

a)

$r=\frac{7}{ax}$

b)

$r=7-ax$

c)

$r=7+ax$

d)

$r=7ax$

10.

$p=\frac{w}{a}$ Solve for w.

a)

$w=pa$

b)

$w=\frac{p}{a}$

c)

$w=\frac{a}{p}$

d)

$w=p+a$ I

11.

Solve for a.

a)

$a=pw$

b)

$a=\frac{p}{w}$

c)

$a=\frac{w}{p}$

d)

$a=w+p$

12.

$IR=V$ $Solve\ for\ R$

a)

$R=IV$

b)

$R=\frac{I}{V}$

c)

$R=\frac{V}{I}$

d)

$R=V-I$

13.

$8x+4y=16$

Solve for y:

a)

$y=-8x+16$

b)

$y=2x-4$

c)

$y=-2x+4$

d)

$y=-8x+12$

14.

Solve for x:

a)

x = yb - v

b)

x = by - v

c)

x = by + v

15.

$dx+e=f$
Which expression represents the value of x in the equation:

a)

$x=\frac{f+e}{d}$

b)

$x=\frac{f-e}{d}$

c)

$x=\frac{d}{e-f}$

d)

$x=\frac{d}{e+f}$

16.

a)

$T=\frac{PV}{K}$

b)

$T=\frac{PK}{V}$

c)

$T=\frac{KV}{P}$

d)

$T+P=PV$

Changing the Subject

Total questions: 16

Worksheet time: 21mins

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