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3 years ago

How much does he/she pay with 10 %

Mathematics

1 answer:

ss7ja [257]3 years ago

5 0

Answer:

5085

Step-by-step explanation:

price after discount is 5000- 10% of 5000 = 4500

V.A.T = 13% of 4500 = (13/100)*4500= 13*45= 585

Price after V.A.T = 4500 + 585 = 5085

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Write the inverse function for the function, ƒ(x) = x + 4. Then, find the value of ƒ -1(4). Type your answers in the box.

lesya [120]

The inverse is:

$f^{-1}(x) = x-4$

Further explanation:

Given function

$f(x) = x+4$

Step 1: Replacing f(x) with y

$y = x+4$

Step 2: Replacing x with y and y with x

$x = y+4$

Step 3: Solving the equation for y

$x = y +4\\x -4 = y+4-4\\y = x-4$

Step 4: Replacing y with f-1(x)

$f^{-1}(x) = x-4$

So, the inverse is:

$f^{-1}(x) = x-4$

Keywords: Functions, Inverse of function

Learn more about inverse of functions at:

#LearnwithBrainly

3 0

3 years ago

Chinedu sat down to do his homework, which included 30 math problems. He solved 2 problems each minute. Let f(n) be the number o

Katen [24]

Answer:

Step-by-step explanation:

If he is solving 2 problems per minute and 8 minutes have passed, he has solved

2*8 = 16 problems

There are 30 problems and he has solved 16

30-16 = 14

There are 14 problems left to solve at the start of the 9th minute

8 0

4 years ago

Read 2 more answers

Is there any other point on the circumference of the circle that shares the y-coordinate of point A(x, y)? If so, what are the c

Feliz [49]

Answer:

point "i" has coordinates (-x, y)

Step-by-step explanation:

Any point on the horizontal line containing point A will have the same y-coordinate. It appears that point "i" in the diagram is a point on the circle and on the horizontal line, so is the point you're looking for. Because the circle is centered at the origin, point "i" will have an x-coordinate that is the opposite of that of point A.

Point "i" is such a point. It has coordinates (-x, y).

4 0

3 years ago

What rate of interest compounded annually is required to triple an investment in years? WORTH 50 points!!

Lesechka [4]

At a rate of interest of 3.86% compounded annually investment will be tripled.

that is how i was taut, sorry if is wrong

4 0

3 years ago

The high school tennis team is selling tennis balls to raise $500 for new equipment. They sell the balls for $4 each. A case h

Citrus2011 [14]

Answer:

1.75 cases need to be sold

Step-by-step explanation:

The complete question is

The high school tennis team is selling tennis balls to raise $500 for new equipment.They sell the balls for $2 each.

4).How many cases of tennis balls does the tennis team have to sell in order to raise enough money for new equipment.

Solution

Price of each ball = $4

No. of balls in each package = 3

Total number of balls that need to sold in order to raise $500 is

$\frac{500}{4} = 125$

one package = 3balls

Hence no of packages to be sold

$\frac{125}{3} = 41$ packages and 2 balls or total 42 packages

1 case has 24 packages , thus total number of cases to be sold = $\frac{42}{24} = \frac{14}{8} = \frac{7}{4} = 1.75$

6 0

3 years ago