Explanation

(+5) - (+7) = 5 - 7 = -2

Subtracting a larger positive number from a smaller one gives a negative result.

Explanation

The property that states:

a + b = b + a

It is known as the Commutative property of addition.

It indicates that the order of the numbers being added does not change the result.

Explanation

A rational number is defined as a number that can be expressed as the ratio of two integers, i.e., a/b, where a and b are integers and b ≠ 0.

Every rational number can be written in the form of a fraction, where the numerator and denominator are integers.

Example: 3/4, 22/7, 1/2, etc.

Explanation

Let's evaluate each statement:

1. -5 + 1 = -4 (not 4), so this statement is false.

2. 4 - 5 = -1 (true)

3. 2 + (-1) = 1 (true)

4. -7 + (-6) = -13 (true)

Explanation

The prefix "bi-" means two.

Examples include bicycle (two wheels) and bimonthly (twice a month or every two months).

Explanation

To evaluate the expression, follow the order of operations:

Multiply 3 and 3: 3 × 3 = 9

Divide 9 by 3: 9/3 = 3

Add 3 and 3: 3 + 3 = 6

Explanation

Answer:

D

if  30% of 80/y =24

 24y = (30 x 80)/100   equation #1
y = (30 x 80)/ (24 x 100) =1

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VU CBT FIA PAPER 25-12-2021

Explanation

 Let the number be x

Explanation

The product of two rational numbers is always rational because the product of two fractions (or integers) is another fraction (or integer).

Rational numbers are closed under multiplication, meaning multiplying two rationals results in another rational number.

Explanation

Given:

A = {2, 4, 6, 10}

The symbol ∈ means "is an element of".

Since 4 is an element of set A, the correct representation is:

4 ∈ A