ax + 2y = 5 3x - 6y = 20 In the system of above, a is a constant if the system has one solution, which of the following CANNOT be the value of a...? Mcqs

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ax + 2y = 5 3x - 6y = 20 In the system of above, a is a constant if the system has one solution, which of the following CANNOT be the value of a...?

(A) -1
(B) 1

(C) 2
(D) -3

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0.5 x 0.06 = ______

(A) 03
(B) 0.03

(C) 3
(D) 0.003

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The product the two numbers is 72. Find of the other number when the one number is 9...?

(A) 10
(B) 08

(C) 06
(D) None of these

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Solve the equation 8/0.2 =...?

(A) 4
(B) 40

(C) 16
(D) 30

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A positive number when decreased by 4 becomes 21 times its reciprocal. The number is ______...?

(A) 5
(B) 6

(C) 7
(D) 8

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In class, one-fourth opted to learn German; four-fifths of the remaining students Italian. Two-thirds of the remaining students decided to learn French and rest Japanese. 12 people decided to learn Japanese, how many of them opted for Italian?...?

(A) 120
(B) 136

(C) 144
(D) 256

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The average height of a class of 25 students is 4.4 A student of height 5. 7 feet is newly enrolled. Find the new average...?

(A) 4.43 feet
(B) 4.45 feet

(C) 4.31 feet
(D) 430 feet

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The cube root of 0.000126 is...?

(A) 0.06
(B) 0.6.

(C) 0.006
(D) 0.0006

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[7x - 1] = [4x + 8] what will the value of x...?

(A) 03
(B) -03

(C) 01
(D) None of these

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Find the value of x and y by solving the given equation, 2x + y = 20 6x - 5y = 12...?

(A) x = 5 y = 6
(B) x = 7 y = 6

(C) x = 4 y = 5
(D) x = 9 y = 8

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