ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
TSI Math Videos 144 videos
What is the equation of the line graphed above?
A line passes through the point (-4, -4) and has a slope of . What is its equation?
Line A has an x-intercept of -4 and a y-intercept of 8. What is its slope?
TSI Math: Calculating Ellie's Original Wages After Three Raises 5 Views
Share It!
Description:
Ellie has been working the same job for the past three summers. Each summer, she's earned a 10% raise. Her current wage is $16 per hour. What was her hourly wage three summers ago?
Transcript
- 00:02
Okay sy match members third of five in this section
- 00:05
Here we go here's the question Ellie has been working
- 00:07
the same Job for the past 3 summers Each summer
- 00:10
she's earned a ten percent raise her current wages Sixteen
- 00:13
bucks an hour What was her hourly wage three summers
Full Transcript
- 00:17
ago Well let's see let's let x be eli's original
- 00:26
hourly wage which we don't know yet when she first
- 00:29
began working right someone's got to pay the rent for
- 00:31
mom You know she's off gallivanting All right well after
- 00:34
eli's first ten percent raise her new wage became acts
- 00:38
that old wage plus point one ex writer one point
- 00:41
one x and then each raise multiplies her Hey by
- 00:44
one point one kind of compounds away right So since
- 00:47
she had three raises while the equations here one point
- 00:50
one time one point one one point one times x
- 00:54
is sixteen so we got one point three three one
- 00:57
x equals sixteen and we've gotta divide both sides by
- 01:02
one point three three one and we get well Acts
- 01:05
equal 16 of our hand and that's twelve point o
- 01:08
too So eli's hourly wage three summers ago was twelve
- 01:12
point Oh too And well the answer there is a
- 01:15
and the finance e way to do this would have
- 01:17
just been to take her current number sixteen dollars figure
- 01:21
Put it in the numerator and divide by the number
- 01:23
of previous years Calm pounded that you're going to do
- 01:26
discount that money back to it's a discounted cash flow
- 01:29
trick and that would have been one point One two
- 01:31
The third power gets you the same answer but looks
- 01:35
way cooler on a test All right that's it it's 00:01:37.124 --> [endTime] a twelve oh two
Related Videos
Which is the best way to revise and combine sentences 1 and 2?
Where would the following sentence best be placed?
Which of the following is best to insert at the beginning of sentence 8?
Which is the best location for sentence 9?
Which of the following sentences is best to insert between sentences 11 and 12?