Translate 3x + 2y in words
A. Sum of three times x and two times y
B. Sum of one time x and three times y
C. Sum of one time of x and three times of y
D. Sum of three times of x and three times of y
Find the mean proportional of 4 and 167
A. 2
B. 4
C. 26
D. 10
Explanation: The mean proportional of two numbers is the square root of their product. To find the mean proportional of 4 and 167, we can calculate:
Mean proportional = √(4 * 167)
Mean proportional = √(668)
Mean proportional ≈ 25.857
Rounding to the nearest whole number, the mean proportional is 26.
Which of the following is in-equation
A. 2x – 1 = 0
B. 2x – 1 = 3y + 4
C. 5x – 1 < 0
D. ax + b = 0
Explanation: An inequality is a mathematical statement that compares two expressions and indicates that they are not equal.
5.12 – 5.02 is equal to
A. 0.01
B. 0.1
C. 0.14
D. 10.14
If a, b, c are any three whole numbers such that, a x ( b + c ) = a x b + a x c. Then this property is known as:
A. Distributive law of multiplication over addition
B. Distributive law of addition over multiplication
C. Commutative law of multiplication
D. Associative law of addition
Sum of the three consecutive natural numbers is 9. Find the numbers.
A. 1, 2, 3
B. 2, 3, 4
C. 3, 4, 5
D. 1, 4, 8
Explanation: To find the three consecutive natural numbers whose sum is 9, we can set up an equation and solve for the unknown numbers.
Let's assume the first number is x. The next two consecutive natural numbers would be x + 1 and x + 2.
According to the given information, the sum of these three numbers is 9:
x + (x + 1) + (x + 2) = 9
Simplifying the equation:
3x + 3 = 9
3x = 6 x = 2
Therefore, the three consecutive natural numbers that sum up to 9 are 2, 3, and 4.
