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Gwar [14]
3 years ago
13

A cash register contains $10 bills and $100 bills with a total value of $2010. If there are 30 bills total, then how many of eac

h does the register contain? $10 bills
Mathematics
2 answers:
finlep [7]3 years ago
7 0

Answer:

there will be 19 $100 bills

and 11 $10 bills

Step-by-step explanation:

100*19=1900\\10*11=110\\1900+110=2010

Aneli [31]3 years ago
6 0

Answer:

11

Step-by-step explanation:

Let x be how many $10 bills there are.

Let y be how many $100 bills there are

x + y = 30

x = 30 - y

10x + 100y = 2010

10(30 - y) + 100y = 2010

300 - 10y + 100y = 2010

-10y + 100y = 2010 - 300

90y = 1710

y = 1710 / 90

y = 19

x = 30 - 19

x = 11

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One way to solve these is to add twice the first equation to the second.

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Now, subtract 2x

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3 years ago
A license plate consists of 6 letters and 3 numbers.How many plates can be made;a.If repetition is allowed?b.if the 3rd letter h
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3 years ago
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kherson [118]

Answer:

The answer is

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Step-by-step explanation:

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For this case

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f(x) = {\displaystyle  8 + \frac{-28}{1}(x+2)+\frac{-36}{2!}(x+2)^2 + \frac{-18}{3!}(x+2)^2 }

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When analyzing the multiple regression model, the real estate builder should be concerned with Multicollinearity.

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The income in this research is influenced by the education and they both influence family size. There is therefore an issue of multicollinearity here because some variables are correlated.

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