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Simplify the expression. 21) (20 + (4)(3)/2[16 ÷ (4 + 4)])

Question : Simplify the expression. 21) (20 + (4)(3)/2[16 ÷ (4 + 4)]) : 2163601

Simplify the expression.

21) (20 + (4)(3)/2[16 ÷ (4 + 4)])

A) undefined

B) 2

C) 16

D) 8

22) (3 - 2)(5 + 2) + 53

A) 125

B) 1

C) 132

D) 7

23) 25 - [5 + (7 - 5)] - (4 - 2)3

A) 30

B) 10

C) 4

D) 26

24) (5/4)(1/3) + (4/5)(1/2)

A) (49/44)

B) (49/60)

C) (49/36)

D) (11/15)

Evaluate the expression when x = 2, y = 1, and z = 4.

25) 3z

A) 3

B) 4

C) 7

D) 12

26) (y/3x)

A) 6

B) (y/6)

C) (1/6)

D) (2/3)

27) 7x + 4

A) 56

B) 42

C) 15

D) 18

28) |7z - 4y|

A) 32

B) 24

C) -24

D) 20

29) 3z2

A) 19

B) 48

C) 18

D) 24

Evaluate the expression for the given replacement values.

30) (2x/y) + yx = 8, y = 6

A) (1027/2)

B) (116/3)

C) (17/3)

D) (656/3)

31) (8x - 7y/7) x = 10, y = 5

A) (115/7)

B) (45/7)

C) (73/7)

D) (30/7)

32) (13x - 5y/x + 9) x = 7, y = 2

A) (9/11)

B) (81/16)

C) (81/11)

D) (9/16)

33) (x + 3y)2 x = 2, y = 2

A) 8

B) 25

C) 64

D) 16

34) 9y + (35/x) x = 5, y = 7

A) 98

B) 70

C) 16

D) 7

Decide whether the given number is a solution of the given equation.

35) x + 15 = 23; 8

A) not a solution

B) solution

36) x - 5 = 1; 6

A) solution

B) not a solution

37) 7x + 9 = 53; 6

A) solution

B) not a solution

38) 6x - 6 = 48 - 3x; 6

A) solution

B) not a solution

39) (1/5)x = 6; 30

A) solution

B) not a solution

40) x + 8 = x + 8; 12

A) solution

B) not a solution

Solution
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Mathematics 1 Year Ago 182 Views
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