How do you translate the phrase into an algebraic: Fifteen less than twice Mary's points?

2 Answers
May 31, 2018

Using #x# as the variable for mary's points...

#2x-15#

May 31, 2018

Answer:

#2x-15#

Explanation:

The key realization here is that Mary's points are unknown, so we can represent it with the variable #x#.

Given that #x#=Mary's points, twice her points can be modeled as

#color(blue)(2x)#

"Fifteen less" means we will be subtracting #15# from the above quantity to get

#2x-15#

Hope this helps!