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Serjik [45]
3 years ago
11

FIRST-PERSON BRAINLIEST Which algebraic expression represents “the sum of a number and 9”?

Mathematics
1 answer:
Dahasolnce [82]3 years ago
7 0

Answer:

Step-by-step explanation:

The sum of a number and 9 is adding of any variable to 9.

E.g the sum of 8 and 7

8+7=15

We can also have the sum of two unknown numbers, we can let the first number be x and the second number be y, then the sum of the two unknown will be (x+y).

So, let apply this to the question

The sum of a number and 9, since we don't the number, let the number be n, then the sum of the number and 9 will be (n+9)

Then the correct option is B which is n+9

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When it says 7/10, it actually means 70%, so you have to find 70% of 120.
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lutik1710 [3]

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Read 2 more answers
On a journey of 600 km, a train was delayed 1 hour and 30 min after having covered 1/4 of the way. To arrive on time at the dest
Sati [7]

Answer:

10 hours

Step-by-step explanation:

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