Quiz about SIMPLE EQUATION AND CHANGE OF SUBJECT

Question 1

Make a the subject of
a + b = c

Accepted Answer

a = c - b

Answer

a = b - c

Answer

a = b + c

Answer

a = bc

Question 2

Make a the subject of
a + b = c + d

Accepted Answer

a = c + d - b

Answer

a = b + c + d

Answer

a = b + c - d

Answer

a = c - b - d

Question 3

Make w the subject of
A = lw

Accepted Answer

w = A/l

Answer

w = l/A

Answer

w = A - l

Answer

w = Al

Question 4

Make x the subject of y = mx + 1

Accepted Answer

x = (y - 1)/m

Answer

x = y - 1/m

Answer

x = y/m - 1

Answer

x = my - 1

Question 5

Make x the subject of y = mx + c

Accepted Answer

x = (y - c)/m

Answer

x = y - c/m

Answer

x = y/m - c

Answer

x = my + c

Question 6

Make x the subject:
N = (180 + x)/2

Accepted Answer

x = 2N -180

Answer

x = N - 180

Answer

x = N/2 -180

Answer

x = N -180/2

Question 7

Make a the subject of
a + b = c

Accepted Answer

a = c - b

Answer

a = b - c

Answer

a = b + c

Answer

a = bc

Question 8

Which of the following has "a" as the subject of the formula?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 9

ax + c = R
(solve for x)

Accepted Answer

x = ^(R-c)/_a

Answer

ax = R + c

Answer

ax = R - c

Answer

x = a(R-c)

Question 10

Solve for y:
3x + y = 12

Accepted Answer

y = -3x +12

Answer

x = y + 4

Answer

x = y + 12

Answer

y = 3x -12

Question 11

Find the variable and constant in the algebraic expression y+21_________

Accepted Answer

Variable is y & constant is 21

Answer

No variable

Answer

No constant

Answer

Variable is 21 & constant is y

Question 12

Find the value of x if

7x +3+2= 26

Accepted Answer

3

Answer

-3

Answer

0

Answer

21

Question 13

If you subtract 3 from 6 times a number you get 9

Accepted Answer

6x-3=9

Answer

3x-6=9

Answer

6x+3=9

Answer

3x+6=9

Question 14

The sum of three times x and 10 is 13

Accepted Answer

3x+10=13

Answer

3x-10=13

Answer

3x+13=10

Answer

None of these

Question 15

Taking away 5 from x gives

Accepted Answer

X - 5 =10

Answer

X + 5 = 10

Answer

X - 10 - 5

Answer

None of these

Question 16

Add 1 to three times n to get 7

Accepted Answer

3n + 1 = 7

Answer

3n - 1 = 7

Answer

3n + 7 = 1

Answer

None of these

Question 17

Add 1 to three times n to get 7

Accepted Answer

3n + 1 = 7

Answer

3n - 1 = 7

Answer

3n + 7 = 1

Answer

None of these

Question 18

The solution of the equation X + 3 = 0 is

Accepted Answer

- 3

Answer

3

Answer

0

Answer

1

Question 19

The solution of the equation X - 6 = 1 is

Accepted Answer

7

Answer

1

Answer

6

Answer

-7

Question 20

The solution of the equation X - 6 = 1 is

Accepted Answer

7

Answer

1

Answer

6

Answer

-7

Question 21

The solution of the equation 5x = 10 is

Accepted Answer

2

Answer

1

Answer

5

Answer

10

Question 22

The solution of the equation 7n + 5 = 12 is

Accepted Answer

1

Answer

0

Answer

-1

Answer

5

Question 23

The solution of the equation 4n - 3 = 9 is

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 24

m - 25.4 = 105

Accepted Answer

130.4

Answer

79.6

Answer

131

Answer

80

Question 25

What is the first step to solve this equation:
11 - 3x = 44

Accepted Answer

Subtract 11 from both sides

Answer

Add 3 to both sides

Answer

Add 11 to both sides

Answer

Divide 3 on both sides.

Question 26

6z + 3 -4z = 9

Accepted Answer

z = 3

Answer

z = 60

Answer

z = 30

Answer

z = 1

Question 27

4 = 2(x + 3)

Accepted Answer

-1

Answer

1/2

Answer

7/2

Answer

5

Question 28

3y+4y+6=20

Accepted Answer

y=2

Answer

y=-2

Answer

y=4

Answer

y=3

Question 29

-2x-7+3x=10

Accepted Answer

x=17

Answer

x=-2

Answer

x=3

Answer

x=10

Question 30

5x - 4 + 2x = 3

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 31

Solve the equation

x+3=7

Accepted Answer

x=4

Answer

x=5

Answer

x=6

Answer

x=7

Question 32

Solve the equation

x-2=8

Accepted Answer

x=10

Answer

x=2

Answer

x=8

Answer

x=12

Question 33

Solve the equation

x+1=0

Accepted Answer

x=-1

Answer

x=0

Answer

x=1

Answer

x=2

Question 34

Solve the equation

x+5=5

Accepted Answer

x=0

Answer

x=-5

Answer

x=-3

Answer

x=-1

Question 35

Solve the equation

4-x=4

Accepted Answer

x=0

Answer

x=4

Answer

x=-4

Answer

x=1

Question 36

Solve the equation

3x=-9

Accepted Answer

x=-3

Answer

x=3

Answer

x=9

Answer

x=1

Question 37

Solve the equation

5=5x

Accepted Answer

x=1

Answer

x=0

Answer

x=5

Answer

x=10

Question 38

Solve the equation

-4x=24

Accepted Answer

x=-6

Answer

x=-4

Answer

x=6

Answer

x=8

Question 39

Find the solution of the simultaneous equation.

Accepted Answer

(3, -2)

Answer

(0, -2)

Answer

(2, -3)

Answer

(-2, 3)

Answer

no solution

Question 40

Solve:

3x - y = 11

x + y = 5

Accepted Answer

x = 4y = 1

Answer

x = 4

y = -1

Answer

x = -4

y = 1

Answer

x = -4

y = -1

Question 41

Solve:

2x + 3y = 5

x + 3y = 7

Accepted Answer

x = -2

y = 3

Answer

x = -2

y = -3

Answer

x = 2y = 3

Answer

x = 2

y = -3

Question 42

Solve:

2x + 5y = 29

x + 5y = 22

Accepted Answer

x = 7y = 3

Answer

x = -7

y = -3

Answer

x = 7

y = -3

Answer

x = -7

y = 3

Question 43

Solve:

3x + 5y = 4

4x - 5y = -18

Accepted Answer

x = -2

y = 2

Answer

x = -2

y = -2

Answer

x = 2

y = -2

Answer

x = 2y = 2

Question 44

Solve:

2x + y = 16

4x - y = 2

Accepted Answer

x = 3

y = 10

Answer

x = -3

y = -10

Answer

x = -3

y = 10

Answer

x = 3

y = -10

Question 45

Solve:

4x - y = 17

7x - y = 32

Accepted Answer

x = 5y = 3

Answer

x = -5

y = 3

Answer

x = 5

y = -3

Answer

x = -5

y = -3

Question 46

Some horses and chickens are in a pasture. If there are a total of 28 animals and 80 legs, how many chickens and how many horses are there? (Hint: Write simultaneous equations and then solve)

Accepted Answer

12 horses, 16 chickens

Answer

10 horses, 18 chickens

Answer

16 horses, 12 chickens

Answer

18 horses, 10 chickens

Question 47

Where would you find a solution for

y < -x + 4

Accepted Answer

In the shaded region below the line.

Accepted Answer

On the origin.

Answer

In the shaded region above the line.

Answer

On the line.

Question 48

The table shows some values of the variables P and Q.

It is given that P varies inversely as Q. Find the value of R.

Accepted Answer

27

Answer

15

Answer

18

Answer

31

Question 49

Question 49.

Accepted Answer

direct variation

Answer

inverse variation

Answer

joint variation

Answer

none of these

Question 50

Suppose y varies directly as x.
If y = 22.5 when x = 15, find y when x = 20.

Accepted Answer

30

Answer

1.5

Answer

337.5

Answer

16.875

Question 51

Suppose y varies directly as x.
If y = 22.5 when x = 15, find y when x = 20.

Accepted Answer

30

Answer

1.5

Answer

337.5

Answer

16.875

Question 52

State what type of variation the equation represents.

Accepted Answer

Direct

Answer

Inverse

Answer

Joint

Answer

None

Question 53

If f varies jointly as q² and h, and f = 96 when q = 4 and h = 3, find q when f = 48 and h = 6.

Accepted Answer

2

Answer

4

Answer

6

Answer

3

Question 54

If x varies inversely as v, and x = 35 when v = 3, find x when v = 15.

Accepted Answer

7

Answer

9

Answer

5

Answer

21

Question 55

If m varies directly as p, and m = 35 when p = 5, find m when p is 6.

Accepted Answer

42

Answer

36

Answer

25

Answer

49

Question 56

What is 7 mod 3?

Accepted Answer

1 mod 3

Answer

2 mod 3

Answer

3 mod 3

Answer

0 mod 3

Question 57

What is 57 mod 7?

Accepted Answer

1 mod 7

Answer

0 mod 7

Answer

7 mod 7

Answer

-1 mod 7

Question 58

What is 99 mod 100?

Accepted Answer

99 mod 100

Answer

100 mod 99

Answer

1 mod 100

Answer

100 mod 1

Question 59

What does 36 mod 13 look like using the Quotient Remainder Theorem?

Accepted Answer

36 = 13 * 2 + 10

Answer

36 = 10 * 3 + 6

Answer

13 = 36 * 1 - 23

Answer

6 = 36  - 10 * 3

Question 60

What is 6 mod 9 + 11 mod 9 congruent to?

Accepted Answer

8 mod 9

Answer

6 mod 9

Answer

7 mod 9

Answer

0 mod 9

Question 61

what is (-5 mod 4) - (-3 mod 4) congruent to?

Accepted Answer

2 mod 4

Answer

1 mod 4

Answer

-2 mod 4

Answer

-1 mod 4

SIMPLE EQUATION AND CHANGE OF SUBJECT

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