x = number of $1.50 souvenirs.
Since there is 200 souvenirs total, then the number of $2.50 souvenirs is (200 - x)
(Cost of Souvenir)(number sold) + (cost)(number sold) = total
(1.50)x + (2.50)(200 - x) = 380
1.50x + 500 - 2.50x = 380
-x = -120
x = 120
So, there are 120 of the $1.50 and 80 of the $2.50
2007-10-10 06:40:40
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answer #1
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answered by Mathematica 7
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Let x represent the number of souvenirs sold for $1.50. Then 200-x is the number of souvenirs sold for $2.50. The total proceeds are $380, so
$1.50x + $2.50(200-x) = $380
$1.50x + $500 - $2.50x = $380
$500 - $380 = $1.00x
x = 120.
To check our answer, 120 souvenirs sold for $1.50 gives us 120*1.50 = $180.
200-x = 200-120 = 80 sold at $2.50 each. That gives 80*$2.50 = $200.
$180 + $200 = $380, which checks.
So, 120 were sold at $1.50, and 80 were sold at $2.50.
2007-10-10 06:45:05
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answer #2
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answered by Doctor 7
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Let x represent the number of $1.50 souvenirs. so (200 – x) represent the number of $2.50 souvenirs.
Amount of sale of $ 1.5 = x × 1.5 = 1.5 x
Amount of sale of $ 2.5 = (200 – x) × 2.5 = 2.5 × 500 – 2.5 x
Total sale = 1.5 x + 500 – 2.5 x = 380
– x = 380 – 500 = – 120
x = 120 tickets of $ 1.5
and (200 – 120) = 80 of $ 2.5
2007-10-10 06:41:50
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answer #3
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answered by Pranil 7
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Let x = number of $1.50 souvenirs
Let 200 - x = number of $2.50 souvenirs
Then 1.50x + 2.50(200-x) = 380
Distribute the 2.50 through the parentheses:
1.50x + 500 - 2.50x = 380
Add the x terms:
-x + 500 = 380
Simplify:
500 - 380 = x
120 = x
Therefore you sold:
120 of the $1.50 souvenirs
80 of the $2.50 souvenirs
As a double-check:
200 souvenirs were sold.
120 x $1.50 = $180
80 x $2.50 = $200
Total sales = $380 <-- check
2007-10-10 06:35:39
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answer #4
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answered by Puzzling 7
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Let x = number of $1.50 souvenirs
Let 200 - x = number of $2.50 souvenirs
As total money is 380 so the money earned from both should be equal to that
So
1.50x + 2.50(200-x) = 380
1.50x + 500 - 2.50x = 380
-x + 500 = 380
500 - 380 = x
120 = x
2007-10-10 06:41:53
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answer #5
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answered by Darling 2
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X + Y = 200 => x = 200-y
1.50x + 2.50Y = 380
1½x + 2½y = 380
1½(200-y) +2½y = 380
300 -1½y + 2½y = 380
1y = 380 - 300 = 80
x = 200 - 80 = 120
120 souvenirs @ $1.50
80 Souvenirs @ $2.50
2007-10-10 06:39:50
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answer #6
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answered by David F 5
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Let x = number of $1.50 souveniers
... then
200 - x = number of $2.50 souveniers
... so
1.50 x + 2.50(200-x) = 380
... and you can do the rest yourself, can't you?
1.5 x + 500 - 2.5 x = 380
-x + 500 = 380
-x = -120
x = 120
2007-10-10 06:40:59
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answer #7
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answered by Keith P 7
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if you let x = the $1.50 souveniers then let y = $2.50
so this has to mean that x+y=200
we also know that 1.5x+2.5y=380
no using simultaneous equations you need to eliminate either x or y, I'll eliminate x
x+y=200 [multiply by 1.5 so the same number of x's is got]
1.5x+2.5y=380
1.5x+1.5y=300 or 1.5x+2.5y=380
1.5x+2.5y=380 1.5x+1.5y=300
- ____________ [subtract]
y=80
now substitute
x+y=200
x+80=200
x=120
check: 120X$1.50 =$180 plus 80X$2.50 =$200 = $380 i.e. correct
ANS 120 $1.50 souvenirs and 80 $2.50 souveniers
2007-10-10 06:44:02
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answer #8
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answered by kfgmaster 3
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80 at 2.50 and 120 at 1.50
2007-10-10 06:46:17
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answer #9
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answered by No Longer Dizzy 6
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150 1.50 and 50 2.50
2007-10-10 07:10:41
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answer #10
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answered by sk8rboi786 1
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