Question

Which expression correctly represents buice the sum of four and a number?

a)2(4+n)
b)2(4n)
c)2(4)+n
d)2+(4n)

Answer 1

The correct answer is option a) 2(4 + n). The correct representation of 'twice the sum of four and a number' is 2(4 + n), which is mathematical expression from the given options.

Step-by-step explanation:

The correct answer is option a) 2(4 + n). The student asked to represent twice the sum of four and a number. The word 'sum' indicates that you are adding something, so first you combine 4 and a number (which we'll represent with 'n'). Hence, the sum of four and a number is 4 + n. To get twice this sum, you multiply the entire sum by 2, resulting in 2(4 + n). This is the correct way to express the algebraic representation of the phrase.

To represent twice the sum of four and a number, we can express it as 2 times the sum of 4 and n.

The expression 2(4+n) is equivalent to 2 times the sum of 4 and a number, where n represents the number. This expression correctly represents twice the sum of four and a number.