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Nesterboy [21]
3 years ago
9

Find the sales tax. Then find the total cost of the item.

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
5 0

Answer:

100 + 4 = 104%

40/100 X 104 = 41.6

total cost: $41.60

sales tax: $1.60

sergiy2304 [10]3 years ago
4 0

Answer:

Tax: $1.6

Total cost: $41.6

Step-by-step explanation:

40*0.04 = 1.6, 40 + 1.6 = 41.6

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A jar that contains quarters and dimes is worth $7.15. If there are a total of 40 coins,
kherson [118]

Answer:

21 quarters and 19 dimes

Step-by-step explanation:

Create a system of equations where q is the number of quarters and d is the number of dimes.

0.25q + 0.1d = 7.15

q + d = 40

Solve by elimination by multiplying the bottom equation by -0.25

0.25q + 0.1d = 7.15

-0.25q - 0.25d = -10

Add them together and solve for d:

-0.15d = -2.85

d = 19

Then, plug in 19 as d into the second equation to solve for q:

q + d = 40

q + 19 = 40

q = 21

So, there are 21 quarters and 19 dimes

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3 years ago
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3 years ago
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Does this data appear to be proportional? Explain why or why not.
Artist 52 [7]

The given data is proportional because, we get 3.15 when Quantity y is divided by Quantity x, y/x = 3.15

Given,

The data;-

Quantity x; 2 , 6 , 9 , 5 , 1

Quantity y; 6.3, 18.9, 28.35, 15.75, 3.15

We have to find the proportionality between the data set given;-

Lets see the proportionality;-

Quantity y ÷ Quantity x

6.3 ÷ 2 = 3.15

18.9 ÷ 6 = 3.15

28.35 ÷ 9 = 3.15

15.75 ÷ 5 = 3.15

3.15 ÷ 1 = 3.15

Here,

The given data is proportional because, we get 3.15 when Quantity y is divided by Quantity x, y/x = 3.15

Learn more about proportionality here;

brainly.com/question/29247352

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1 year ago
What is the solution set of fx x>-5) u {xx<5)?
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Huh.........

Explanation:

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2 years ago
Need number 1 and 2
m_a_m_a [10]
First one is 97
2nd one is 8000
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