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denpristay [2]
3 years ago
15

Mary Steiner purchased school supplies at Office Emporium for $97.62. She then purchased a dictionary for $22.95 and a CD for $1

4.78 at Books Express. For all purchases, she must pay the state sales tax of 6.5 percent and the county tax of 0.5 percent. What is the total tax on her purchase? Explain your answer
Mathematics
1 answer:
slamgirl [31]3 years ago
7 0

Answer:

8.79 + .67 = 9.46 total tax

Step-by-step explanation:

97.62 + 22.95 + 14.78 = 135.35

135.35 * .065 = 8.79 state

135.35 * .005 = .67 county

8.79 + .67 = 9.46 total tax

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Answer:

3)

Step-by-step explanation:

An equation is linear if equal changes in x produce equal changes in y.

Let's look at each choice.

1)

A decrease of 10% per year. That means each year, the value of the car is 0.9 times the value of the previous year.

For example, if the original value was $10,000, after 1 year, it is worth 0.9 * $10,000 = $9,000. In 1 year it lost $1,000. In the next year, its value is now 0.9 * $9,000. The value at the end of the 2nd year is $8,100. In the second year, it lost $900 in value. In one period of 1 year it lost $1000 in value. In another equal period of 1 year, it lost $900 in value. A change of 1 year in time produces different changes in loss of value, so it is not linear.

2)

Here, the number doubles every year. Let's say it starts with 100 fish. After 5 years, it has 200 fish. In a change of 5 years in x, the change in y is 100. In the next 5 years, it goes from 200 fish to 400 fish. The change in the second period of 5 years is 200. We see that a change of 5 years can produce a change of 100 fish, but another change of 5 years can produce a change is 100 fish. Since for equal changes in x, the changes in y are not all equal, this is not linear.

3)

Here for every change of 1 day in x, the change in y is 2 liters. Each change of 1 in x always produces a change of 2 in y. This is linear.

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Each 2 hours, the amount of caffeine is 2/3 of what it was before. This is similar to the choice 1), and it is not linear.

Answer: 3)

7 0
3 years ago
PLEASE HELP PLEASE WILL GIVE BRAINLIEST!!!!!!! A retain arithmetic sequence has the following explicit formula for the nth term:
SashulF [63]

In the given question,the given explicit formula is

a_{n) = 4+(n-1)(7)

Which is of the form

a_{n} = a +(n-1)(d)

So the constant difference is 7 here.

Now for the recursive formula

To find the next term, we need to add 7 to the current term, that is

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So the correct option is B

7 0
3 years ago
What is the silution
svet-max [94.6K]

Answer:

a homogeneous mixture of two or more substances in relative amounts that can be varied continuously up to what is called the limit of solubility

6 0
3 years ago
Look at this set of ordered pairs:
forsale [732]

Answer: Yes

If I remember correctly, I believe these ordered pairs indicate a function, as there is exactly 1 output for every input (i.e., (output, input)). If there were 2 inputs of the same number, that'd make this relation not a function.

7 0
2 years ago
The price of all rail season tickets increased by 6%. After the increase, the price of a rail season ticket from Sheffield to Le
valentina_108 [34]

Answer:

£2720

Step-by-step explanation:

106%=2883.20

100%=x

106x=288320

divide both by 106 it gives 2720

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