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SAT Math: Find an Equation to Solve for Money Spent 7 Views
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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
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