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3 years ago

Which graph displays a rate of change of 2.5?

Mathematics

2 answers:

kvv77 [185]3 years ago

7 0

the middle one is a rate of 2.5

Yuri [45]3 years ago

4 0

Answer:

The one in the middle.

Step-by-step explanation:

Not the first one because it would have a negative rate of change.

Find slope of second one:

Use points (2,2) and (0,-3)

(-3 - 2) / ( 0 - 2)

-5 / -2

2.5

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In which set are all of the numbers solutions to the inequality x < -3?

Tomtit [17]

Answer:

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Step-by-step explanation:

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3 years ago

The ounces of yellow paint, y, needed to mix with x ounces of blue paint to make a certain shade of green paint can be represent

alexira [117]

Answer:

The constant of proportionality of the equation is 1.5.

Step-by-step explanation:

Equation of proportional measures:

Suppose that y and x are proportional measures. This situation can be equatialized is:

y = ax

In which a is the constant of proportionality.

y = 1.5x. What is the constant of proportionality of the equation?

a = 1.5, so the constant of proportionality of the equation is 1.5.

6 0

3 years ago

American cars use about 600 000 000 gallons of oil per year. How many liters of oil do American cars use per year? Report your a

fiasKO [112]

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4 0

3 years ago

If you need to know the other options I'll tell you just ask :)

vazorg [7]

Answer:

The slope is $-50$ . The slope means that the amount of money in the account is decreasing at a rate of $ $50$ every week.

Step-by-step explanation:

Given coordinates are $(4,2400)\ and\ (12,2000)$

We need to find the slope of the graph, and explain what does slope means for this graph.

The formula for computing slope $(m)$ is

$m=\frac{y_2-y_1}{x_2-x_1}$

Where $(x_1.y_1)$ and $(x_2,y_2)$ are the point on the line.

Let us plug points $(4,2400)\ and\ (12,2000)$ in the equation

$m=\frac{2000-2400}{12-4}\\ \\m=\frac{-400}{8}\\\\m=-50$

Here, the negative sign of slope $(m)$ represents that the value of the function (budget) is decreasing, with an increase in time (week).

The slope is $-50$ . The slope means that the amount of money in the account is decreasing at a rate of $ $50$ every week.

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4 years ago

2/3(6c+4)-(8c-5) Please explain how to do the problem.

irga5000 [103]

2/3(6c+4)-(8c-5)
1) Get rid of the negative signs
New equation (the ones in bold are the changes): 2/3(6c+4)+(-8c)+(5)
2) Use distributive property for the first part by multiplying 2/3*6c= 4c and 2/3*4= 2 2/3
New equation: 4c+2 2/3+ (-8c) + 5
3) Combine like terms: 4c+(-8c)= -4c and 2 2/3+5= 7 2/3
New and simplified equation: -4c+ 7 2/3

5 0

3 years ago