4 years ago

Which expression can be used to model the phrase “ the sum of three and a number”?

Mathematics

2 answers:

olga nikolaevna [1]4 years ago

5 0

Answer:

x + 3

Step-by-step explanation:

A 'sum' means addition, 'a number' is represented by a variable, in this case, I chose 'x'. I could have picked any variable I wanted.

The sum of three and a number means: three plus some number, which is

3 + x in math language. We write variables before constants, so it gets

rewritten as x + 3

Oliga [24]4 years ago

5 0

Answer:

A) 3 + x

Step-by-step explanation:

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