RainbowKitten013 RainbowKitten013

31-01-2017
Mathematics

Answered

Which equation best represents this situation?

The sum of 21 and an unknown number is equal to 30.

A21b = 30

B21 + b = 30

C21 ÷ b = 30

D21 - b = 30

Verified Answer :

31-01-2017

The answer is B. 21 + b = 30

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jodeelhyn jodeelhyn

31-01-2017

Well, the sum of two numbers can be found by adding them together. SO, the answer would be the second choice, B. 21+b=30.
The product of two numbers means multiplication, the difference between two numbers means subtraction, and the quotient of two numbers is found by dividing them.

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