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WorksheetsChange the subject of the formula
Total questions: 15
Worksheet time: 4hrs 45mins
Name
Class
Date
1.
Make a the subject of
a + b = c
a + b = c
a)
a = c - b
b)
a = b - c
c)
a = b + c
d)
a = bc
2.
Make a the subject of
a + b = c + d
a + b = c + d
a)
a = c + d - b
b)
a = b + c + d
c)
a = b + c - d
d)
a = c - b - d
3.
Make w the subject of
A = lw
A = lw
a)
w = A/l
b)
w = l/A
c)
w = A - l
d)
w = Al
4.
Make x the subject of y = mx + 1
a)
x = (y - 1)/m
b)
x = y - 1/m
c)
x = y/m - 1
d)
x = my - 1
5.
Make r the subject:
C = 2πr
C = 2πr
a)
r = C/2π
b)
r = C - 2π
c)
r = 2πC
d)
r = Cπ/2
6.
Which of the following has "a" as the subject of the formula?
a)
b)
c)
d)
7.
Change the subject of the equation to x.
A x - y = P
4 lines
8.
Change the subject of the equation to x.
A x - y = P
4 lines
9.
ax + c = R
(solve for x)
(solve for x)
a)
ax = R + c
b)
ax = R - c
c)
x = a(R-c)
d)
x = (R-c)/a
10.
Solve for y:
3x + y = 12
3x + y = 12
a)
y = -3x +12
b)
x = y + 4
c)
x = y + 12
d)
y = 3x -12
11.
ax+r = 7 Solve for r.
a)
r=ax7
b)
r=7−ax
c)
r=7+ax
d)
r=7ax
12.
IR=V Solve for R
a)
R=IV
b)
R=VI
c)
R=IV
d)
R=V−I
13.
dx+e=f
Which expression represents the value of x in the equation:
a)
x=df+e
b)
x=df−e
c)
x=e−fd
d)
x=e+fd
14.
A=5ab make b the subject
a)
b=A/5a
b)
b=5Aab
c)
b=5Ab
d)
b=5a/A
15.
w = mgh make h the subject of the formula
a)
w = mgh
b)
h = mg/w
c)
h = w/mg
d)
h = wg/
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