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lesya [120]
3 years ago
14

(50 POINTS AND BRAINLIEST FOR BEST)

Mathematics
2 answers:
morpeh [17]3 years ago
6 0

Answer:

RI - 79%

Ohio - 75.5%

Colorado 2.86%

plz brainly me :) !

Step-by-step explanation:

Inessa [10]3 years ago
4 0

Colorado:

Subtract the total price from the list price to find the amount of tax, divide the amount of tax by list rice:

3.60 - 3.50 = 0.10

0.10 / 3.50 = 0.29

9.00 - 8.75 = 0.25

0.25/8.75 = 0.29

11.31 - 10.99 = 0.32

0.32/10.99 = 0.29

Tax rate = 0.29 * 100 = 2.9%

Ohio:

The tax rate would be added to one and multiplied by the sale price for the total price ( sale price plus tax.

In the equation given the sale price is multiplied by 1.055, subtracting 1 yoy get 0.55, multiply by 100: 0.55 * 100 = 5.5% sales tax.

Rhode Island:

x is list price y is total price. Use the same steps as Colorado:

10.70 - 10 = 0.70

0.70 / 10 = 0.07

64.20 - 60 = 4.20

4.20 / 60 = 0.07

0.07 * 100 = 7%

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Eric has 183 coins all of them are nickels and dimes. If the total value of the coins is 14.45, how many of each denomination co
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Answer:

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Step-by-step explanation:

Let there be n nickes and d dimes

Since there are 183 coins, we can write:

n + d = 183

Also, the value of nickel is 0.05 and dime is 0.1, total value is 14.45, so we can write:

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Solving 1st equation for n, we have:

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Putting this into 2nd equation and solving for d:

0.05n + 0.1d = 14.45\\0.05(183-d) + 0.1d = 14.45\\9.15-0.05d+0.1d=14.45\\0.05d=5.3\\d=106

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