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3 years ago

9

Which expression represents 81 decreased by an unknown number?

2 answers:

Lyrx [107]3 years ago

6 0

Answer:

Hey, There! my name is Raven and I'm here to help!

<h2>Question</h2>

Which expression represents 81 decreased by an unknown number?

<h2>Answer</h2>

81 − a is the Correct Answer

Step-by-step explanation:

When we Decrease something we take It away or Subtract it from the Amount we had For example If John Had 9 apples And He gave 2 apples to Jay He would then have 7 apples Because the Amount of apples decreased.

Therefore, I hope this helps!

Take care!

$_Raven_$

Andrews [41]3 years ago

3 0

Answer:

81 - a

Step-by-step explanation:

<em>Decreased </em>

means to subtract

81 –

<em>by an unknown number</em>

means a variable such as a or x

therefor

81 – a

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