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11-09-2015
Mathematics

Answered

Translate the word phrase into a variable expression.

The number a is decreased by the number b.

A.

a – b

B.

b – a

C.

a + b

D.

Verified Answer :

Anonymous Anonymous

11-09-2015

The word decreased by means subtract.
So...
Lets look at A.
A: a-b
Sound correct?
No,
Because the sentence said that "a is decreased by the number b."
Lets look at B.
B. b-a
Sound correct?
Yes,
Because a is getting decreased by b.

Your answer is, B.

Hope this helps!(:

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