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3 years ago

Describe a real-world situation that can be modeled by the function y=2x-3.

Mathematics

1 answer:

lara [203]3 years ago

3 0

Yes you have a good example.

x = number of cookies

2*x = total amount spent on cookies at $2 each

2x-3 = amount you pay after the $3 discount is applied one time for the entire order

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a more numeric example may be this

Lets say you bought 12 cookies, so x = 12

This means it costs 2*x = 2*12 = 24 dollars total if the discount doesnt apply

However, the 3 dollar discount is there, so the grand total is 24-3 = 21 dollars.

You might be interested in

The distribution of ages of runners in a marathon is approximately normal. The oldest participant was 80 and the youngest was 13

igomit [66]

Answer: The mean is greater than the median

when finding the mean then add the numbers then divide them by the amount of numbers there are when finding the median find the middle number and if there is no middle number divide the 2 and that should be your mean

8 0

3 years ago

Serena bedroom is 12 feet wide and 13 feet long what is the distance around the edges of the room

nikdorinn [45]

Since we are looking for the distance around the edges of the bedroom, we are actually finding the perimeter.

2L + 2W = perimeter where L is length and W is width. Plugging our known information into the equation:

2(13) + 2(12)
= 26 + 24
= 50

Your answer should be 50 feet. Hope this helps!

5 0

3 years ago

What is the domain of <img src="https://tex.z-dn.net/?f=%5Csqrt%7B2x-4%7D" id="TexFormula1" title="\sqrt{2x-4}" alt="\sqrt{2x-4}

MariettaO [177]

Answer:

all real numbers such that x is greater than or equal to 2 (x≥2)

Step-by-step explanation:

3 0

3 years ago

Find the zeros of quadratic polynomial X2 - 2x - 8

Gelneren [198K]

Answer:

The zeroes of a polynomial is the value of x when the polynomial is set to 0.

We can write x² - 2x - 8 = 0. This factors to (x - 4)(x + 2) = 0 and using Zero Product Property the solutions are x = 4, x = -2.

4 0

3 years ago

Point A is located at (3,6). The midpoint of line segment AB is point C(11,13). What are the coordinates of point B? Use the mid

lesya692 [45]

Answer: The coordinates of point B are (19 , 20).

Step-by-step explanation:

The mid point (x,y) of line joining (a,b) and (c,d) is given by :-

$(x,y)=(\dfrac{a+c}{2},\dfrac{b+d}{2})$ (1)

Given : Point A is located at (3,6). The midpoint of line segment AB is point C(11,13).

Let the coordinates of point B are (a,b) m, the according to (1) , we have

$(\dfrac{3+a}{2},\dfrac{6+b}{2})=(11,13)\\\\\Rightarrow\ \dfrac{3+a}{2}=11\ \ ,\ \ \dfrac{6+b}{2}=13\\\\\Rightarrow\ 3+a=22\ \ ,\ \ \ 6+b=26\\\\\Rightarrow\ a=19,\ \ b= 20$

Hence, the coordinates of point B are (19 , 20).

5 0

4 years ago