ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Algebra and Functions Videos 140 videos
SAT Math 2.3 Algebra and Functions. Calculate this function.
SAT Math: Find an Equation to Solve for Money Spent 7 Views
Share It!
Description:
Jacob typically purchases dress shirts for $35 each at his favorite store. He visits the shop on a day when every dress shirt is discounted by 10%. He also sees that a new tie will cost him only $12 on this particular day. Which of the following represents the amount of money Jacob would spend if he purchases both a new tie and d dress shirts? (Do not include sales tax in your equation.)
Transcript
- 00:00
Yeah Whoa All right Masks members more coming at you
- 00:05
Here we go Yakup That's how they pronounce that in
- 00:08
Sweden where he's from typically perches dress shirts that looked
- 00:12
like that for thirty five bucks each at his favorite
- 00:15
store he visits the shop on a day when every
Full Transcript
- 00:17
Drescher discounted by ten percent He also sees that a
- 00:20
new tie will cost him only twelve bucks You could
- 00:22
try to light it on fire It won't even light
- 00:24
on this particular day It's twelve bucks Yeah which of
- 00:26
the following represents the amount of money Yacoub would spend
- 00:29
if he perches both a new tie and D dress
- 00:33
shirts and forget about sales Okay Well Yacoub's quite a
- 00:38
lucky man to enter the store in a discount day
- 00:40
We love doing that We'd say he is getting ready
- 00:43
to be quite the fancy pants but it appears he's
- 00:45
looking for shirts not pants Well to find the correct
- 00:48
equation first consider the meaning of a ten percent discount
- 00:51
He'll pay ten percent less than he would normally pay
- 00:54
Buying an individual shirt Well this means we can subtract
- 00:58
ten percent from whatever one hundred percent of the price
- 01:00
of the shirt is to find that he'll be paying
- 01:02
ninety percent of that original price Right so it's a
- 01:05
hundred bucks you'd be paying ninety We know the original
- 01:07
Price D is thirty five Well the price per shirt
- 01:10
then can be represented as ninety percent of thirty five
- 01:13
or point nine times thirty five Well defined the total
- 01:17
that Yacoub will spend on Drescher's prior to sales tax
- 01:20
We can multiply the price pressured by D the variable
- 01:23
representing the number of shirts he'll buy Got it It's
- 01:26
a point nine times three five D But wait a
- 01:29
minute Yacoub is not first eight ready yet He's gotta
- 01:32
finish off that look with a tie We know he
- 01:34
will buy one tie for twelve bucks who Just add
- 01:37
that twelve to the total amount that he'll spend on
- 01:39
Drescher's and you get that equation right there Point nine
- 01:42
three five People s twelve Yacoub's getting a discount on
- 01:44
a ten percent price increase Get rid of a discounts
- 01:47
ten percent not a measly ten cents Get rid of
- 01:49
C and there's also nothing in the problem about a
- 01:51
package deals so Yacoub won't receive a ten percent off
- 01:54
his tie either So that's it The answer is B
Related Videos
SAT Math 1.1 Algebra and Functions. Find an algebraic equation to correspond with the data.
SAT Math 1.1 Geometry and Measurement. What is the circumference of the circle?
SAT Math 1.1 Numbers and Operations. How many combinations of beverage and cereal can be made?
SAT Math 1.1 Statistics and Probability. In which of the following data sets are the arithmetic mean and the median equal?
SAT Math: Algebra and Functions Drill 1, Problem 2. Based on the data in the table, what is the maximum heart rate for the average 22-year-old?