Question

Evaluate the algebraic expression -2.3a + 4.6 for the given value.

Value of a = -5
a) 16.3
b) 15.0
c) 12.7
d) 10.4

Answer 1

When evaluating the algebraic expression -2.3a + 4.6 for a = -5, the result is 16.1. Therefore, the correct answer is (a) 16.1.

Step-by-step explanation:

To evaluate the algebraic expression -2.3a + 4.6 for the given value of a = -5, we substitue -5 into the expression in place of a:

-2.3(-5) + 4.6

First, multiply -2.3 by -5:

11.5 + 4.6

Then, add 11.5 to 4.6:

11.5 + 4.6 = 16.1

Therefore, the value of the expression -2.3a + 4.6 when a = -5 is 16.1, which means the correct answer is (a) 16.1.