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-BARSIC- [3]
2 years ago
5

Help me with this please!!​

Mathematics
1 answer:
yulyashka [42]2 years ago
6 0
I think this is how u ans it , haha.
Not sure if its comp right but im sure u can get method marks T-T

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Sales price is 67.50 sales tax is 5% how much is the total amount paid
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$70.88

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67.50+3.38= 70.88
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How many oxygen atoms are in the product H2O+ CO2
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at the movie theatre, child admission is $5.20 and adult admission is $9.00. on Monday, 132 tickets were sold for a total sales
kakasveta [241]

Answer:

That day 51 child tikets were sold

Step-by-step explanation:

To do this problem we have to make 2 equations, one that represents the number of entries and the other that represents the money

x = child tickets

y = adult tickets

x + y = 132

x * $5.20 + y * $9.00 = $994.20

First we have to solve for the x in the first equation

x + y = 132

x = 132 - y

Now we replace the x with (132 - y) in the second equation

x * $5.20 + y * $9.00 = $994.20

(132 - y) * 5.20 + y * 9.00 = 994.20

686.4 - 5.2y + 9y = 994.2

-5.2y + 9y = 994.2 - 686.4

3.8y = 307.8

y = 307.8/3.8

y = 81

We replace y with its value in the first equation

x = 132 - y

x = 132 - 81

x = 51

That day 51 child tikets were sold

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It’s -10
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