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ACT Math: Pre-Algebra Drill 5, Problem 2. If a and b are prime numbers, how many factors does ab have?
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SAT Math 9.1 Algebra and Functions 208 Views
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Description:
SAT Math 9.1 Algebra and Functions
Transcript
- 00:04
Here's your shmoop du jour, brought to you by Traveling Salesmen.
- 00:07
If you turn out all the lights and hide under your bed, they won't even know you're home.
- 00:12
A salesman earns a base pay of $12/hour plus 5% commission on his sales.
- 00:17
If he sells $35,000 worth of goods working seven 8-hour days, how much is his total pay?
- 00:27
Okay, so we're trying to find the total income of a salesman.
Full Transcript
- 00:31
His pay comes from two sources: Hourly rate, and commission.
- 00:36
The sum of the two is what we're looking for.
- 00:39
First, we'll find his hourly rate.
- 00:41
Well each hour, the salesman earns 12 bucks, but how long did he work?
- 00:46
Well, he worked seven 8 hour days,
- 00:49
so we can just get a total by multiplying the two and we get 7 times 8 is
- 00:53
56 hours total for that week.
- 00:55
Now we just multiply $12 per hour by 56 hours and that gets us $672 in a week,
- 01:02
but we can't forget his 5% commission on his $35,000 of sales.
- 01:06
We can multiply 35,000 by .05 to get $1,750.
- 01:13
From his hourly rate, the salesman earns $672, and another $1,750 from commission.
- 01:19
And it totals $2,422.
- 01:22
Not bad for a week's work.
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