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1 year ago

Statins are used to keep cholesterol in check and are a top-selling drug in the U.S. The equation:

Mathematics

1 answer:

Yuri [45]1 year ago

3 0

People in the U.S spend 18.8 billion dollars in 2009.

<h3>What is substituting ?</h3>

Substituting in mathematics is putting a specific value in an independent variable to observe a system.

According to the given data

Statins is the top selling drug in US to keep cholesterol in check.

The equation of the sales (S) of statin in billons of dollars x years after is

S - 1.3x = 4.5

The year difference is (2009 - 1998) = 11 years or x = 11

Putting the value of x in the given equation

S - 1.3(11) = 4.5

S = 4.5 + 14.3

S= 18.8

∴ The number of sales of statin is $18.8 billions.

Learn more about substitution here :

brainly.com/question/19516092

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Please help right now!!!!! Solve the system of equations below. x + y = 7 2x + 3y = 16

motikmotik

Answer:

$x=5$ and $y=2$ .

Step-by-step explanation:

We have been given a system of equations. We are asked to solve our given system.

$x+y=7...(1)$

$2x+3y=16...(2)$

From equation (1), we will get:

$x=7-y$

Upon substituting this value in equation (2), we will get:

$2(7-y)+3y=16$

$14-2y+3y=16$

$14+y=16$

$14-14+y=16-14$

$y=2$

Now, we will substitute $y=2$ in equation (1).

$x+2=7$

$x+2-2=7-2$

$x=5$

Therefore, the point $(5,2)$ is solution for our given equation.

7 0

3 years ago

Cannon balls for an antique cannon are stacked next to it in four layers to form a square pyramid. How many cannon balls are in

labwork [276]

The amount of balls in a given layer can be found by squaring the layer it is in

4 layers
top layer (1st) is 1
2nd is 4
3rd layer is 9
4th is 16

add them up
1+4+9+16=30

30 in that pyramid

7 0

3 years ago

Using numbers, variables and symbols, write an expression that describes the following The product of 5 and n, minus the quotien

slavikrds [6]

Answer:

5n-t/7

Step-by-step explanation:

The product of 5 and n puts them in the same category and product means times and your going to minus t divided by 7

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3 years ago

If the measure of an angle is 44 degrees , then the angle is acute which is true the converse the inverse the contrapositive non

aleksandrvk [35]

Answer: the converse

Why: “if Q then P”, if 44 then acute

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3 years ago

Suppose the population of all public universities shows the annual parking fee per student is $110, with a standard deviation of

vampirchik [111]

The probability would be 0.9738.

We first find the z-score for each end of this interval:

z = (x-μ)/(σ/√n) = (100-110)/(18/√49) = -10/(18/7) = -3.89

z = (x-μ)/(σ/√n) = (115-110)/(18/√49) = 5/(18/7) = 1.94

Using a z-table (http://www.z-table.com) we see that the probability that a score is less than the first z-score is 0. The probability under the curve to the left of, less than, the second z-score is 0.9738. Subtracting these we find the area between them:
0.9738 - 0 = 0.9738.

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3 years ago