Question

Evaluate the expression for the given value of the variables.
0.5a - 1.9b
a = 13, b=2

Answer 1

To evaluate the expression 0.5a - 1.9b with a = 13 and b = 2, substitute the values to get 0.5(13) - 1.9(2), which simplifies to 6.5 - 3.8, resulting in an answer of 2.7.

Step-by-step explanation:

To evaluate the expression 0.5a - 1.9b for the given values a = 13 and b = 2, you substitute the values into the expression and perform the necessary arithmetic operations:

1. Substitute the values of a and b into the expression: 0.5(13) - 1.9(2).
2. Multiply 0.5 by 13 to get: 6.5.
3. Multiply 1.9 by 2 to get: 3.8.
4. Subtract 3.8 from 6.5 to get the final answer: 2.7.

Therefore, the value of the expression for a = 13 and b = 2 is 2.7.