Write the phrase as an algebraic expression. Let x represent the unknown number.
-Twice a number, increased by 78
A)x + 78
B)2x + 78
C)2x - 78
D)2(x + 78)

Question

Quizplus · Accepted Answer

"Twice a number" translates to 2x, and "increased by 78" translates to +78. Therefore, the expression is 2x + 78. "Twice a number" can be represented as 2x, and "increased by 78" means adding 78. Thus, the algebraic expression would be 2x + 78.

Write the Phrase as an Algebraic Expression