Question

Evaluate ab-0.5b when a=1 and b =5

Answer 1

Answer: $2.5$

Step-by-step explanation:

Given the following expression:

$ab-0.5b$

And given these values of "a" and "b":

$a=1\\ b =5$

You need to follow these steps in order to evaluate it:

1. You must substitute the values of "a" and "b" into the expression provided:

$ab-0.5b=(1)(5)-0.5(5)$

2. Now, you need to solve the multiplications:

$=5-2.5$

3. Finally, you must solve the subtraction. Then:

$=2.5$