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

Question

5287 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-05-31T13:59:05

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

#2x-15#

Answer 2 · 2018-05-31T14:00:04

#2x-15#

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!