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White raven [17]
3 years ago
12

How much will you need to save to purchase a $100 item in a state with a 6.5% tax rate?

Mathematics
2 answers:
Masteriza [31]3 years ago
7 0

Answer:

$93.89

Step-by-step explanation:

Work backwards -> 1.065x=100

x=$93.89

Ronch [10]3 years ago
7 0

Answer:

$106.50

Step-by-step explanation:

Take 100 and multiply it by 6.5%. This will give us 6.5, the amount of tax to pay. Then add 100 to 6.5 giving you the total of $106.50.

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Which of the following is true for the relation f(x) = x2 + 8? Only the inverse is a function. Both the equation and its inverse
Alchen [17]

<u>ANSWER</u>

Only the equation is a function

<u>EXPLANATION</u>

f(x)=x^2+8 is graphed above with its inverse f^{-1}(x)=\pm \sqrt{x-8}.


We perform the vertical line test for both the equation and its inverse.


The equation f(x)=x^2+8 passed the vertical line hence it is a function.

However, f^{-1}(x)=\pm \sqrt{x-8} failed the vertical line test, hence it is not a function.


3 0
3 years ago
The length of a rectangle is 3 cm less than twice the width. If the perimeter is 42 cm, what is the length of the rectangle?
larisa [96]

Answer:

The length is 13

Step-by-step explanation:

w+w+l+l= perimeter

if the length is 3m less than twice the width then let's do some math.

42 divided 2 =21. so the width and length of one side have to equal 21. For example, let's use 8 as the width. The length would be twice(16) minus three(13) 13 plus 8 is 21. WOW it equals half of it so no we know the length is 13 and the wdith is 8.

6 0
3 years ago
WILL MARK AS BRAINLIEST PLEASE HELP!!!
neonofarm [45]

Step-by-step explanation:

2x = y-10

Rewrite as: 2x + 10 = y

Therefore:

2x+10 = y

2x +7 = 2y

Subtract the equations:

 2x + 10 = y

- 2x + 7 = 2y

______________

          3 = -y

Therefore y = -3

Substiture y = -3 into the second equation:

2x + 7 = 2(-3)

2x + 7 = -6

2x = -13

x= -6.5

Answer : (-6.5, -3)

3 0
3 years ago
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24.94is29% of what number
MArishka [77]

Answer:

86

Step-by-step explanation:

3 0
3 years ago
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Solve the following equation x+2=10
Maru [420]

Answer:

x=8

Step-by-step explanation:

8 0
3 years ago
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