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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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If this is her hourly salary, then multiply 8.75 x 11

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3 0
3 years ago
Read 2 more answers
Find the savings plan balance after 2 years with an APR of 4% and monthly payments of $250. The balance is $ (Do not round until
alexdok [17]

Answer:

$6,506.51

Step-by-step explanation:

Recall that increasing an amount C in x% is equivalent to multiply it by (1+x/100)

As we have 4% APR, the monthly interest would be (4/12)% = 0.04/12

<u>Month 0</u> (first payment)

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Month 1

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<u>Month 2</u>

250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2)

<u>Month 3</u>

250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3)

<u>Month 24 (2 years)</u>

250(1+\frac{12.04}{12}+(\frac{12.04}{12})^2+(\frac{12.04}{12})^3+...+(\frac{12.04}{12})^{24})

The sum  

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so, after 2 years the saving balance is

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To solve the proportion you have to cross multiply:

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She needs to add 14 oz of blue paint

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