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This video covers how to use cross products to solve for a missing number in a proportion by setting that proportion with a variable over the produ...
GED Math 2.4 Rational Numbers. Lucius's favorite restaurant is how many km from his home?
ACT Math 2.5 Intermediate Algebra 289 Views
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Description:
ACT Math Intermediate Algebra Drill 2, Problem 5. Solve for x in this inequality.
- Intermediate Algebra / Inequalities and absolute value equations
- Product Type / ACT Math
- Foreign Language / Spanish Subtitled
- Foreign Language / Korean Subtitled
- Foreign Language / Chinese Subtitled
- Foreign Language / Arabic Subtitled
- Algebra / Solve equations and inequalities in one variable
- Algebra / Solve equations and inequalities in one variable
- Algebra / Solve equations and inequalities in one variable
- Algebra / Solve equations and inequalities in one variable
- Intermediate Algebra / Absolute value equations and inequalities
Transcript
- 00:02
Shmoop de jour time on your plate.
- 00:06
Solve for x: the absolute value of 16 plus x is less than or equal to 30.
- 00:12
And here are the potential answers...
- 00:17
OK so what is this question asking?
- 00:20
Not much... it just wants to know what "x" is.
Full Transcript
- 00:23
Well, as in all absolute value questions, start by ignoring the lines at first...
- 00:28
...16 plus what amount is still less than 30?
- 00:32
Well, we know 14 has to be one of the numbers so it's gotta be A or D...
- 00:36
...but we also know it's a range, not just a number so... boom. By elimination, it has
- 00:41
to be D.
- 00:42
No need to waste any more of this beautiful day screwing around with any of the other
- 00:46
answer choices.
- 00:47
Get out there and start playing.
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