Question

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

Answer 1

$= 1 \times 5 - 0.5 \times 5 \\ = 5 - 2.5 \\ = 2.5$
2.5 is answer o your question

Answer 2

Answer:2.5

Step-by-step explanation:

It would be 1 times 5 less 0.5 times 5 if a=1 and b=5. You must use PEMDAS to obtain this, and multiplication comes before subtraction. Since 1 times 5 is 5 and 0.5 times 5 is 2.5, you may now subtract one from the other to get the solution.

=1*5-0.5*5

=5-2.5

=2.5

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