Question

Suppose that in 2009, the percentage of 12-year-olds who owned a cell phone was 13 points higher than three times the percentage in 2004. If ( p ) is the percentage in 2004, write an algebraic expression in terms of ( p ) for the percentage in 2009.

A. ( 3p + 13 )
B. ( p + 13 )
C. ( 3p - 13 )
D. ( 3(p + 13) )

Answer 1

The algebraic expression that represents the percentage of 12-year-olds who owned a cell phone in 2009, which is 13 points higher than three times the percentage in 2004, is (3p + 13), where p is the percentage in 2004.

Step-by-step explanation:

The student is asked to write an algebraic expression that represents the percentage of 12-year-olds who owned a cell phone in 2009, given that this percentage is 13 points higher than three times the percentage in 2004. If we let p represent the percentage in 2004, then the percentage in 2009 can be expressed as 3p + 13, which corresponds to three times the percentage in 2004, plus 13. Therefore, the correct algebraic expression in terms of p for the percentage in 2009 is (3p + 13), which is Option A.