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

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Answer 1 · 2018-05-31T13:59:05

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

$2 x - 15$ $2x-15$

Answer 2 · 2018-05-31T14:00:04

$2 x - 15$ $2x-15$

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

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

$2 x$ $color(blue)(2x)$

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

$2 x - 15$ $2x-15$

Hope this helps!