Question

Select all the true statements.

A. 2.3+(-2.3) is equal to zero
B. (-3.7)+(-4.1) is positive
C. -2.6-(-12/4) is positive
D. (5/2)+(-2.5) is negative
E. 72-(-100) is negative

Answer 1

Statements A and D are true, while statement E is false.

Step-by-step explanation:

A. 2.3+(-2.3) is equal to zero
This statement is true. When we add a number to its negative counterpart, the result is always zero. In this case, 2.3 + (-2.3) is equal to zero.

D. (5/2)+(-2.5) is negative
This statement is true. When we add a positive number to a negative number, the result is always negative. In this case, (5/2) + (-2.5) is equal to -0.5, which is negative.

E. 72-(-100) is negative
This statement is true. When subtracting a negative number, it is the same as adding its positive counterpart. In this case, 72 - (-100) is equal to 72 + 100, which is 172. Since the result is positive, the statement is false.

Answer 2

A , and C

Step-by-step explanation:

A. 2.3+(-2.3) ➡ 2.3 -2.3 = 0 so this option is correct

B.-3.7+(-4.1) ➡ -3.7 - 4.1 = -7.8 so this option isn't correct

C.-2.6-(-12/4) ➡-2.6 + 3 = 0.4 this option is also correct

D. (5/2)+(-2.5) ➡ 5/2 -5/2 = 0 this one would be undefined because we can't divide 0 by 2 or any other rational numbers

E.72-(-100) ➡72+100= 172 is positive not negative therefore this option is incorrect