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26-01-2017
Mathematics

contestada

Which would the phrase "twice the sum of a number and three" look
like as a variable expression?
Question 9 options:

a. 2n+3

b. 2(n+3)

c. 2+ (2n+3)

d. 2(2n-3)

Respuesta :

apologiabiology apologiabiology

26-01-2017

"twice the sum" means 2 times the sum of some numbers
"a number and 3" means n+3 if we rpresent the number as n

so
2 times (n+3)
2(n+3)

B is answer

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