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CAHSEE Math 1.2 Algebra and Functions 760 Views
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Description:
CAHSEE Math Algebra and Functions: Drill Set 1, Problem 2. Which of the following represents the statement?
Transcript
- 00:03
And here's your shmoop du jour.
- 00:07
Which of the following represents the statement,
- 00:09
"six more than seven times a number, y, is equal to 73"?
- 00:13
Here are the potential answers...
- 00:16
And spoiler alert, hit pause. Try it yourself.
Full Transcript
- 00:21
Ok, the evil wizards are testing our technical math-vocabulary skills.
- 00:27
We just have to read the question carefully, and we'll get to the promised land.
- 00:31
So... let's... go.
- 00:31
"six more than"
- 00:33
Translation?
- 00:34
"six plus"
- 00:36
Now, they don't say "the quantity of" next but we can infer.
- 00:43
"seven times a number" -- so ... glance at the question set and they throw you a curve ball...
- 00:49
...one of the answers has x as a variable; the others are all y...
- 00:54
...yet the problem only asks about y... so it's pretty safe to cross out c as a possibility...
- 01:00
because there ain't no x in this problem.
- 01:02
So we have the 7 times a number as 7y.
- 01:06
And then "is equal to 73" is just written as equals 73
- 01:11
Put it all together and we have 6 + 7y = 73
- 01:16
Flip the order of the first two terms...
- 01:17
...and it looks like our answer is D. Done. And there ain't no more to do.
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