A theater group made appearances in two cities. The hotel charge before tax in the second city was $1500 lower than in the first. The tax in the first city was 3%, and the tax in the second city was 9% . The total hotel tax paid for the two cities was $495.How much was the hotel charge in each city before tax? Please help!!
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OpenStudy (anonymous):
@Talos could you help me with this one?
OpenStudy (anonymous):
Yeah, we need to take it step by step
OpenStudy (anonymous):
so x will be city 1
OpenStudy (anonymous):
y will be city 2
OpenStudy (anonymous):
first is the charge without tax so x=y+1500
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OpenStudy (anonymous):
and the taxes equation will be .03x+.09y=495
OpenStudy (anonymous):
now substitute y=1500 for x in the second equation
OpenStudy (anonymous):
.0.3x+0.9y(1500)=495
OpenStudy (anonymous):
so now you have .03(y+1500) + .09y=495
OpenStudy (anonymous):
no you are substituting it for x
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OpenStudy (anonymous):
because x=y+1500
OpenStudy (anonymous):
ooh, sorry
OpenStudy (anonymous):
Do you understand how I got there though?
OpenStudy (anonymous):
Yes I do
OpenStudy (anonymous):
ok now simplify for x
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OpenStudy (anonymous):
How do I do that? o., there is no x in the equation
OpenStudy (anonymous):
Typo, I meant y
OpenStudy (anonymous):
Sorry about that
OpenStudy (anonymous):
are you gonna get 0.6y+1500=495?
OpenStudy (anonymous):
@Talos
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OpenStudy (anonymous):
Not quite, do you know how the distributive property works?
OpenStudy (anonymous):
Yes I do
OpenStudy (anonymous):
Great! So distribute .03 over (y+1500)
OpenStudy (anonymous):
.03y+45
OpenStudy (anonymous):
yep now add .09y to that
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OpenStudy (anonymous):
45.09
OpenStudy (anonymous):
or is it gonna be .03y+45+.09
OpenStudy (anonymous):
nope, notice the y so it would be .12y+45=495
OpenStudy (anonymous):
the y on .09y + .03y= .12y
OpenStudy (anonymous):
oh okay, i understand how u get that
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OpenStudy (anonymous):
so now subtract 45 from both sides and get .12y=450
OpenStudy (anonymous):
divide both sides by .12 and you get?
OpenStudy (anonymous):
I got 3750
OpenStudy (anonymous):
yep y=3750, going back to where we started we know y is Hotel 2, so now we need the rate for Hotel 1
OpenStudy (anonymous):
use x=y+1500
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OpenStudy (anonymous):
plug in 3750 for y
OpenStudy (anonymous):
x=3750+1500
OpenStudy (anonymous):
so x=5250
OpenStudy (anonymous):
SO your final answer is
Hotel 1's rate: $5250
Hotel 2's rate: $3750
OpenStudy (anonymous):
Thanks very much :) I wrote tht all down incase I get another problem like that lol
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OpenStudy (anonymous):
No problem! With these types of problems, make two equations and substitute(: